Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Detail Textuals)

v3.8.0.1
Stock-based Compensation (Detail Textuals) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2013
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation   $ 1,052 $ 838
Weighted-average fair value of stock options issued   $ 0.77 $ 1.19
Options outstanding (in shares)   2,315,035 1,857,012
Number of shares vested   100,000  
Forfeited (in share)   75,000  
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   710,000  
Number of shares vested   181,750  
Forfeited (in share)   259,500  
Restricted shares outstanding   200,000  
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Fair value of options vested   $ 400 $ 1,500
Options outstanding (in shares)   579,402  
Unrecognized compensation cost related to non-vested awards   $ 1,400  
Unrecognized compensation cost, recognition period   3 years 4 days  
The 2013 Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Authorized shares (in shares) 4,773,992    
Contractual term 10 years    
Shares remaining available for issuance (in shares)   473,041  
Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation   $ 200 $ 200
Employees and officers | Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued   375,000