Quarterly report pursuant to Section 13 or 15(d)

Stock Options (Details Textual)

v3.7.0.1
Stock Options (Details Textual) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 11, 2011
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options exercise price as a % of FMV of underlying common stock 100.00%      
Options exercise price as a % of FMV of underlying common stock for a individual owning 10% or more of Company 110.00%      
Fair value of non-vested options   $ 1,993,000    
Dividends assumption      
Weighted average remaining term of non-vested options   1 year 2 months 23 days    
Options granted to outside shares   41,667    
Stock options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Amortization of employee stock options   $ 283,000 $ 364,000  
Employees and directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total options granted at end of period   25,627    
Options vest pro-rata   48 months    
Option grant life   10 years    
Options exercise price   $ 3.90    
Fair value of options granted   $ 51,000    
Fair value of the stock option as of grant date   $ 3.90    
Employees and Consultants [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total options granted at end of period   381,330    
Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate number of shares available to be awarded on the company stock option plan       450,402
Options available for future grant   110,739