Annual report pursuant to Section 13 and 15(d)

Equity Incentive Plan (Details Textual)

v3.19.1
Equity Incentive Plan (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost $ 28,009  
Share based Compensation Arrangement By Share based Payment Award Exercise Period After Termination 5 years  
Board [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 122,039  
Chief Executive Officer [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 300,000  
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Issued During Period, Value, Employee Stock Ownership Plan $ 158,110  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 23,125  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 25,000  
Stock Issued During Period Value Employee Stock Ownership Plan Forfeited $ 37,880  
Restricted Stock Units (RSUs) [Member] | Employees [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, Forfeited in Period 117,500  
Performance Shares [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock Issued During Period, Value, Employee Stock Ownership Plan $ 45,467  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 6,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 6,000  
Stock Issued During Period Value Employee Stock Ownership Plan Forfeited $ 6,481  
Phantom Share Units (PSUs) [Member] | Employees [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, Forfeited in Period 12,000  
2013 Equity Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Value of options granted $ 330,713  
Unrecognized compensation cost related to non-vested share-based compensation arrangements $ 302,207  
Weighted average period for recognition 8 months 12 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value $ 0  
Equity Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares of common stock available for issuance under the Plan (in shares) 517,563  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 422,039 167,725