Quarterly report pursuant to Section 13 or 15(d)

Description of the Company and Basis of Presentation (Details Narrative)

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Description of the Company and Basis of Presentation (Details Narrative) - USD ($)
$ in Thousands
9 Months Ended
Nov. 27, 2019
Sep. 30, 2020
May 14, 2020
Dec. 31, 2019
[1]
Sep. 30, 2019
Dec. 31, 2018
Cash, cash equivalents   $ 21,077   $ 16,395 $ 5,560 $ 10,159
Working capital   30,450        
Line of credit facility, borrowing capacity          
Common stock having an aggregate offering price     $ 25,000,000      
Common Stock, Preferred Stock, Warrants, Debt Securities, and Units, or Any Combination [Member]            
Sale of stock, description of transaction The Company has on file a shelf registration statement on Form S-3 that was declared effective by the Securities and Exchange Commission (the "SEC") on November 27, 2019. Pursuant to the shelf registration statement, the Company may offer to the public from time to time, in one or more offerings, up to $60,000 of its common stock, preferred stock, warrants, debt securities, and units, or any combination of the foregoing, at prices and on terms to be determined at the time of any such offering.          
Common stock having an aggregate offering price $ 60,000          
Revolving Credit Facility [Member]            
Debt instrument, face amount   $ 10,000        
Line of credit facility, expiration period   5 years        
Two Senior Secured Term Loan [Member]            
Debt instrument, face amount   $ 30,000        
Facilities One [Member]            
Debt instrument, face amount   20,000        
Facilities Two [Member]            
Debt instrument, face amount   $ 10,000        
[1] Derived from audited balance sheet as of December 31, 2019.