Preferred Stock and Equity Offerings (Details Narrative) - USD ($)
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1 Months Ended |
3 Months Ended |
12 Months Ended |
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Oct. 12, 2017 |
Jul. 31, 2017 |
Jul. 07, 2017 |
Jul. 05, 2017 |
Jun. 21, 2017 |
Jun. 21, 2017 |
Jun. 16, 2017 |
Apr. 18, 2017 |
Mar. 22, 2017 |
Mar. 22, 2017 |
Feb. 08, 2017 |
Jan. 25, 2017 |
Jan. 06, 2017 |
Apr. 18, 2017 |
Feb. 28, 2017 |
Dec. 31, 2016 |
Sep. 30, 2017 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Oct. 31, 2014 |
Preferred stock, shares authorized |
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5,000,000
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5,000,000
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5,000,000
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Net proceeds from equity offerings |
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$ 960,000
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$ 29,900,000
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Number of common stock issued, shares |
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9,900,000
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Proceeds from issuance of common stock |
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23,081,000
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$ 1,707,000
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Warrants to purchase shares of common stock |
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875,000
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Proceeds from issuance or sale of equity |
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29,900,000
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Fair value of warrants issued |
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$ 200,000
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141,000
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Option to purchase overallotment option, percentage |
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4.00%
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Warrant term |
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3 years
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Debt conversion, converted instrument, amount |
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11,643,000
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Loss on conversion of convertible debt |
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$ 4,300,000
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Underwriters' overallotment option to purchase common stock |
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875,000
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1,875,000
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Debt instrument beneficial percentage, description |
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The company offered to each purchaser whose purchase of shares of common stock in this offering would otherwise result in the purchaser, together with its affiliates and certain related parties, beneficially owning more than 4.99% of our outstanding common stock immediately following the consummation of this offering, the opportunity to purchase, if the purchaser so chooses, pre-funded warrants, in lieu of shares of common stock that would otherwise result in the purchasers beneficial ownership exceeding 4.99% of our outstanding common stock. Subject to limited exceptions, a holder of pre-funded warrants could not have the right to exercise any portion of its pre-funded warrants if the holder, together with its affiliates, would beneficially own in excess of 4.99% (or, at the election of the holder, 9.99%) of the number of shares of common stock outstanding immediately after giving effect to such exercise. Each pre-funded warrant was exercisable for one share of our common stock.
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Warrant exercised |
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1,700,000
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Warrant exercise price |
$ 1.25
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$ 1.25
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Underwriters purchase common stock, value |
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$ 960,000
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Proceeds from warrants |
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$ 193,000
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Warrant expiring date |
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Aug. 31, 2020
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Warrants exercisable into common stock |
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150,000
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Other (expense) income, net |
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(2,128,000)
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14,000
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Gross proceeds from warrant exercise |
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2,100,000
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Underwriter Discount [Member] |
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Underwriters purchase common stock, value |
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72,000
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Proceeds from warrants |
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$ 882,000
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RedPath Note [Member] |
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Repayments of debt |
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$ 1,330,000
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Debt instrument principal amount |
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9,340,000
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9,340,000
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$ 10,700,000
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RedPath Note [Member] | Senior Secured Non-Convertible Note [Member] |
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Debt instrument principal amount |
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$ 3,550,000
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$ 3,550,000
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$ 3,550,000
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Debt conversion, converted instrument, amount |
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$ 3,550,000
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Debt conversion, converted instrument, shares issued |
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3,795,429
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3,795,429
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RedPath Note [Member] | Investor [Member] |
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Fair value of warrants issued |
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500,000
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Acquisition of debt |
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$ 8,870,000
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RedPath Note [Member] | Investor [Member] | Senior Secured Non-Convertible Note [Member] |
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Debt instrument principal amount |
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$ 3,550,000
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$ 3,550,000
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RedPath Note [Member] | RedPath Integrated Pathology, Inc [Member] |
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Debt instrument principal amount |
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9,340,000
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9,340,000
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Senior Secured Convertible Note [Member] |
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Debt instrument principal amount |
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5,320,000
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5,320,000
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Senior Secured Non-Convertible Note [Member] |
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Debt instrument principal amount |
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$ 3,550,000
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$ 3,550,000
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Termination Agreement [Member] | RedPath Equityholder Representative [Member] |
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Warrants to purchase shares of common stock |
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100,000
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100,000
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Common stock purchase price per share |
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$ 4.69
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$ 4.69
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Fair value of warrants issued |
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$ 190,000
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Warrant term |
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5 years
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Employee Severance [Member] |
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Payments for restructuring |
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$ 1,000,000
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Private Placement [Member] |
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Warrant exercise price |
1.80
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First Registered Direct Offering [Member] |
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Number of common stock issued, shares |
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630,000
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Common stock price, per share |
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$ 6.81
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Proceeds from issuance of common stock |
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$ 4,300,000
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Second Registered Direct Offering [Member] |
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Number of common stock issued, shares |
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855,000
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Fair value of warrants issued |
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$ 1,670,000
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Second Registered Direct Offering [Member] | Employee Severance [Member] |
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Payments for restructuring |
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$ 1,000,000
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Second Registered Direct Offering [Member] | Private Placement [Member] |
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Warrants to purchase shares of common stock |
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855,000
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Common stock purchase price per share |
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$ 4.69
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Proceeds from issuance or sale of equity |
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$ 4,000,000
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Confidentially Marketed Public Offering (CMPO) [Member] |
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Number of common stock issued, shares |
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1,200,000
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Common stock price, per share |
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$ 3.00
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Proceeds from issuance or sale of equity |
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$ 3,900,000
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Option to purchase overallotment option, percentage |
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9.00%
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Common Stock [Member] |
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Number of common stock issued, shares |
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34,000
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Warrants to purchase shares of common stock |
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9,900,000
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Base Warrants [Member] |
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Net proceeds from equity offerings |
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$ 13,700,000
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Number of common stock issued, shares |
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12,500,000
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Warrants to purchase shares of common stock |
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12,500,000
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Common stock purchase price per share |
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$ 1.25
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Fair value of warrants issued |
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$ 5,300,000
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Common stock effective purchase price |
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$ 1.10
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Underwriters' overallotment option to purchase common stock |
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1,875,000
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Underwriter Warrants[Member] |
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Number of common stock issued, shares |
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575,000
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Warrants to purchase shares of common stock |
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2,600,000
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Common stock purchase price per share |
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$ 0.01
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Warrant exercise price |
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$ 1.32
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Base Warrant And Prefunded Warrants [Member] |
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Common stock effective purchase price |
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$ 1.09
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Oveallotment Warrants [Member] |
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Warrants to purchase shares of common stock |
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1,875,000
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1,875,000
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Common stock purchase price per share |
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$ 0.01
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$ 0.01
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Pre-Funded Warrants [Member] |
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Net proceeds from equity offerings |
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$ 12,300,000
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Number of common stock issued, shares |
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2,600,000
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Warrants to purchase shares of common stock |
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2,600,000
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2,600,000
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Common stock purchase price per share |
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$ 1.09
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Fair value of warrants issued |
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$ 2,300,000
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Underwriting discount rate |
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7.50%
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Offering and over-allotment and reasonable out-of-pocket expenses |
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$ 100,000
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Warrant exercised |
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2,600,000
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Warrant exercise price |
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$ 0.01
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$ 1.09
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$ 0.01
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Proceeds from warrants |
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$ 26,000,000
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Overallotment Warrants [Member] |
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Number of common stock issued, shares |
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1,875,000
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Fair value of warrants issued |
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$ 800,000
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4 Million Base Warrants [Member] |
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Common stock purchase price per share |
$ 1.25
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Proceeds from warrants |
$ 5,000,000
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Other (expense) income, net |
$ 2,000,000
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4 Million Base Warrants [Member] | Private Placement [Member] |
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Warrants to purchase shares of common stock |
3,200,000
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Warrant exercise price |
$ 1.80
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