Quarterly report pursuant to Section 13 or 15(d)

Stock based compensation, options and warrants (Schedule of Stock-based Compensation) (Details)

v3.7.0.1
Stock based compensation, options and warrants (Schedule of Stock-based Compensation) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation $ 138,011 $ 176,388 $ 271,054 $ 224,272
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation 57,745 88,176
Stock options awards under the Plan Member [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation 31,452 176,388 95,258 224,272
Non-qualified stock option awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]        
Total stock-based compensation $ 48,814 $ 87,620