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 6 Months Ended 12 Months Ended
Sep. 11, 2011
Mar. 31, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Stock options (Textual)          
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     $ 1,655,000    
Dividends assumption      
Weighted average remaining term of non-vested options     1 year 1 month 13 days    
Options granted outside of the plan     41,667    
Stock options [Member]          
Stock options (Textual)          
Amortization of employee stock options     $ 512,000 $ 674,000  
Employees and directors [Member]          
Stock options (Textual)          
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]          
Stock options (Textual)          
Total options granted at end of period     366,825    
Options [Member]          
Stock options (Textual)          
Aggregate number of shares available to be awarded on the company stock option plan         450,402
Options available for future grant     125,244