Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Details Textual)

v3.5.0.2
Equity Incentive Plan (Details Textual) - USD ($)
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options $ 2,969,537  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 6 months  
Proceeds from Issuance of Common Stock $ 0 $ 15,924,405
Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Granted, Value, Share-based Compensation, Gross $ 271,418  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 88,038  
Allocated Share-based Compensation Expense $ 117,661  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 4,607  
Performance Share Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 119,000  
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value 429,293  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 3.61  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 55.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.50%  
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost, Total $ 80,492  
Performance Share Units [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share Price $ 16  
Performance Share Units [Member] | Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share Price $ 10  
Employees [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 50,100  
Director [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 37,938  
Equity Incentive 2013 Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 659,652  
Equity Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Proceeds from Issuance of Common Stock $ 23,035