Quarterly report pursuant to Section 13 or 15(d)

Equity (Details Narrative)

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Equity (Details Narrative) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended
Apr. 19, 2021
Dec. 31, 2021
Dec. 31, 2020
Apr. 27, 2021
Common stock shares acquired by directors and officers of the Company 679      
Restricted stock shares available to be granted under amended plan   4,958    
Stock option shares available to be granted under amended plan   5,828    
Warrants [Member] | Stock Option [Member]        
Stock granted value share-based compensation   $ 75 $ 135  
Unrecognized compensation expense   $ 382    
Weighted average vesting period   3 years 6 months 21 days    
Restricted Stock [Member]        
Stock granted value share-based compensation   $ 72 $ 176  
Unrecognized compensation expense   $ 490    
2013 Incentive Stock Plan [Member]        
Restricted stock shares available to be granted under amended plan   10,000    
Stock options outstanding under amended plan   15,000    
Authorizes compensation aggregate, shares   10,786    
Security Agreement [Member]        
Public offering of shares of common stock 83,333      
Public offering price per share $ 0.60     $ 0.60
Proceeds from sale of option shares $ 6,937      
Additional shares of common stock 12,500      
Net proceeds of public offering $ 45,478      
Underwriting discount legal fees $ 50,000