Quarterly report pursuant to Section 13 or 15(d)

Liquidity (Details Narrative)

v3.10.0.1
Liquidity (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Cash and cash equivalents $ 8,002 $ 11,703 $ 8,002 $ 11,703 $ 15,199 $ 602
Accounts receivable, net 8,640   8,640   3,437  
Total current assets 18,245   18,245   19,808  
Total current liabilities 7,762   7,762   $ 8,091  
Net loss 3,042 $ 3,316 8,152 7,208    
Net cash used in operating activities     $ 6,800 $ 12,884    
November 2018 [Member]            
Line of credit facility, description     The proceeds of the term loan is expected to be used for laboratory capital expenditures and will be repaid monthly.. The balance of the Line of Credit is available for working capital purposes and has a three-year term. The borrowing limit of the revolving line of credit is the lower of 80% of the company's eligible accounts receivable (as adjusted by SVB) and the aggregate amount of cash collections with respect to accounts receivable during the three prior calendar months.      
Line of credit, percentage     0.50%      
November 2018 [Member] | Prime Rate [Member]            
Line of credit, percentage     5.00%      
November 2018 [Member] | Silicon Valley Bank [Member]            
Line of credit facility 850   $ 850      
Line of credit facility term loan     3 years      
November 2018 [Member] | Silicon Valley Bank [Member] | Maximum [Member]            
Line of credit facility $ 4,000   $ 4,000