Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands |
Common Stock [Member] |
Treasury Stock [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Balance, value |
$ 393
|
$ (1,721)
|
$ 182,514
|
$ (185,665)
|
Balance, shares at Dec. 31, 2019 |
3,932
|
12
|
|
|
Balance,value at Dec. 31, 2019 |
$ 393
|
$ (1,721)
|
182,514
|
(185,665)
|
Common stock issued, shares |
37
|
|
|
|
Common stock issued |
$ 1
|
|
|
|
Restricted stock issued, shares |
6
|
|
|
|
Restricted stock issued |
|
|
|
|
Common stock issued through market sales, shares |
80
|
|
|
|
Common stock issued through market sales |
$ 8
|
|
476
|
|
Common stock issued through ESPP, shares |
|
|
|
|
Common stock issued through ESPP |
|
|
|
|
Treasury stock purchased, shares |
|
|
|
|
Treasury stock purchased |
|
|
|
|
Extinguishment of series A shares |
|
|
(828)
|
|
Beneficial Conversion Feature in connection with Series B Issuance |
|
|
2,205
|
|
Amortization of beneficial conversion feature |
|
|
(2,205)
|
|
Stock-based compensation expense |
|
|
418
|
|
Net income (loss) attributable to parent |
|
|
|
(6,494)
|
Adoption of Asc 842 |
|
|
|
|
Balance,shares at Mar. 31, 2020 |
4,055
|
12
|
|
|
Balance,value at Mar. 31, 2020 |
$ 402
|
$ (1,721)
|
182,580
|
(192,159)
|
Balance, shares at Dec. 31, 2019 |
3,932
|
12
|
|
|
Balance,value at Dec. 31, 2019 |
$ 393
|
$ (1,721)
|
182,514
|
(185,665)
|
Balance,shares at Dec. 31, 2020 |
4,075
|
20
|
|
|
Balance,value at Dec. 31, 2020 |
$ 402
|
$ (1,773)
|
184,404
|
(212,116)
|
Balance, value |
$ 402
|
$ (1,721)
|
182,580
|
(192,159)
|
Balance, shares at Mar. 31, 2020 |
4,055
|
12
|
|
|
Balance,value at Mar. 31, 2020 |
$ 402
|
$ (1,721)
|
182,580
|
(192,159)
|
Common stock issued, shares |
|
|
|
|
Common stock issued |
|
|
|
|
Treasury stock purchased, shares |
|
7
|
|
|
Treasury stock purchased |
|
$ (49)
|
|
|
Stock-based compensation expense |
|
|
400
|
|
Net income (loss) attributable to parent |
|
|
|
(5,580)
|
Balance,shares at Jun. 30, 2020 |
4,055
|
19
|
|
|
Balance,value at Jun. 30, 2020 |
$ 402
|
$ (1,770)
|
182,980
|
(197,739)
|
Balance, value |
$ 402
|
$ (1,770)
|
182,980
|
(197,739)
|
Common stock issued, shares |
5
|
|
|
|
Common stock issued |
|
|
|
|
Common stock issued through ESPP, shares |
|
|
|
|
Common stock issued through ESPP |
|
|
|
|
Treasury stock purchased, shares |
|
|
|
|
Treasury stock purchased |
|
|
|
|
Stock-based compensation expense |
|
|
563
|
|
Net income (loss) attributable to parent |
|
|
|
(6,234)
|
Balance,shares at Sep. 30, 2020 |
4,060
|
19
|
|
|
Balance,value at Sep. 30, 2020 |
$ 402
|
$ (1,770)
|
183,543
|
(203,973)
|
Balance, value |
$ 402
|
$ (1,770)
|
183,543
|
(203,973)
|
Common stock issued, shares |
15
|
|
|
|
Common stock issued |
|
|
|
|
Common stock issued through market sales |
|
|
|
|
Treasury stock purchased, shares |
|
1
|
|
|
Treasury stock purchased |
|
$ (3)
|
|
|
Stock-based compensation expense |
|
|
861
|
|
Net income (loss) attributable to parent |
|
|
|
(8,143)
|
Balance,shares at Dec. 31, 2020 |
4,075
|
20
|
|
|
Balance,value at Dec. 31, 2020 |
$ 402
|
$ (1,773)
|
184,404
|
(212,116)
|
Balance, value |
$ 402
|
$ (1,773)
|
184,404
|
(212,116)
|
Common stock issued, shares |
9
|
|
|
|
Common stock issued |
|
|
108
|
|
Restricted stock issued, shares |
12
|
|
|
|
Restricted stock issued |
|
|
|
|
Common stock issued through market sales, shares |
|
|
|
|
Common stock issued through market sales |
|
|
|
|
Common stock issued through ESPP, shares |
36
|
|
|
|
Common stock issued through ESPP |
|
|
|
|
Treasury stock purchased, shares |
|
|
|
|
Treasury stock purchased |
|
|
|
|
Extinguishment of series A shares |
|
|
|
|
Beneficial Conversion Feature in connection with Series B Issuance |
|
|
|
|
Amortization of beneficial conversion feature |
|
|
|
|
Stock-based compensation expense |
|
|
286
|
|
Net income (loss) attributable to parent |
|
|
|
(4,207)
|
Adoption of Asc |
|
|
|
|
Balance,shares at Mar. 31, 2021 |
4,132,000
|
20
|
|
|
Balance,value at Mar. 31, 2021 |
$ 402
|
$ (1,773)
|
184,798
|
(216,323)
|
Balance, shares at Dec. 31, 2020 |
4,075
|
20
|
|
|
Balance,value at Dec. 31, 2020 |
$ 402
|
$ (1,773)
|
184,404
|
(212,116)
|
Balance,shares at Dec. 31, 2021 |
4,228
|
33
|
|
|
Balance,value at Dec. 31, 2021 |
$ 403
|
$ (1,868)
|
186,106
|
(227,059)
|
Balance, value |
$ 402
|
$ (1,773)
|
184,798
|
(216,323)
|
Balance, shares at Mar. 31, 2021 |
4,132,000
|
20
|
|
|
Balance,value at Mar. 31, 2021 |
$ 402
|
$ (1,773)
|
184,798
|
(216,323)
|
Common stock issued, shares |
10
|
|
|
|
Common stock issued |
|
|
|
|
Treasury stock purchased, shares |
|
|
|
|
Treasury stock purchased |
|
|
|
|
Stock-based compensation expense |
|
|
551
|
|
Net income (loss) attributable to parent |
|
|
|
(3,446)
|
Balance,shares at Jun. 30, 2021 |
4,142
|
20
|
|
|
Balance,value at Jun. 30, 2021 |
$ 402
|
$ (1,773)
|
185,349
|
(219,769)
|
Balance, value |
$ 402
|
$ (1,773)
|
185,349
|
(219,769)
|
Common stock issued, shares |
13
|
|
|
|
Common stock issued |
|
|
226
|
|
Common stock issued through ESPP, shares |
39
|
|
|
|
Common stock issued through ESPP |
$ 1
|
|
|
|
Treasury stock purchased, shares |
|
|
|
|
Treasury stock purchased |
|
|
|
|
Stock-based compensation expense |
|
|
477
|
|
Net income (loss) attributable to parent |
|
|
|
(3,561)
|
Balance,shares at Sep. 30, 2021 |
4,194
|
20
|
|
|
Balance,value at Sep. 30, 2021 |
$ 403
|
$ (1,773)
|
186,052
|
(223,330)
|
Balance, value |
$ 403
|
$ (1,773)
|
186,052
|
(223,330)
|
Common stock issued, shares |
34
|
|
|
|
Common stock issued |
|
|
|
|
Common stock issued through market sales |
|
|
|
|
Treasury stock purchased, shares |
|
13
|
|
|
Treasury stock purchased |
|
$ (95)
|
|
|
Stock-based compensation expense |
|
|
54
|
|
Net income (loss) attributable to parent |
|
|
|
(3,729)
|
Balance,shares at Dec. 31, 2021 |
4,228
|
33
|
|
|
Balance,value at Dec. 31, 2021 |
$ 403
|
$ (1,868)
|
186,106
|
(227,059)
|
Balance, value |
$ 403
|
$ (1,868)
|
$ 186,106
|
$ (227,059)
|