Quarterly report pursuant to Section 13 or 15(d)

Stock based compensation, options and warrants (Schedule of Restricted Stock Activity) (Details)

v3.7.0.1
Stock based compensation, options and warrants (Schedule of Restricted Stock Activity) (Details) - Restricted Stock [Member]
6 Months Ended
Jun. 30, 2017
$ / shares
shares
Total restricted shares, Number of shares  
Beginning balance | shares
Granted | shares 197,000
Forfeited | shares (40,000)
Ending balance | shares 157,000
Total restricted shares, Weighted Average Grant Date Fair value  
Beginning balance
Granted 3.26
Forfeited 3.13
Ending balance 3.30
Vested at June 30, 2017 $ 3.14
Total restricted shares, Number of shares  
Outstanding at January 1, 2017 | shares
Vested | shares 22,166
Forfeited | shares (833)
Vested at June 30, 2017 | shares 21,333
Total vested restricted shares, Weighted Average Grant Date Fair value  
Outstanding at January 1, 2017
Vested 3.14
Forfeited 3.13
Vested at June 30, 2017 $ 3.14