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Stock Option Plan (Detail Textuals) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2016
Oct. 31, 2015
Jan. 31, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total unrecognized compensation cost related to non-vested awards       $ 802   $ 802  
Weighted average period of unvested stock awards           2 years 9 months 7 days  
Total estimated grant date fair value of options vested       $ 66 $ 31 $ 135 $ 63
Weighted average grant date fair value of options granted         $ 2.32 $ 1.43 $ 1.75
Aggregate grant date fair value         $ 116 $ 229 $ 219
2007 Key Person Stock Option Plan | Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for future stock-based compensation grants       0   0  
Aggregate number of share reserve       407,500   407,500  
2014 Stock Incentive Plan | Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for future stock-based compensation grants       666,121   666,121  
Aggregate number of share reserve       450,000   450,000  
Maximum term of stock option grants   10 years          
Percentage of shares reserve increased 4.00% 4.00% 4.00%        
Number of share reserve increased 204,943 1,500,000 188,640     2,343,583