Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details 2)

v3.10.0.1
Stockholders' Equity (Details 2) - Common Stock Warrants [Member]
6 Months Ended
Jun. 30, 2018
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Balance at beginning | shares 8,949,078
Issued | shares
Exercised | shares (251,773)
Expired / Terminated | shares (49,749)
Balance at ending | shares 8,647,556
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Exercise Price [Roll Forward]  
Balance at beginning | $ / shares $ 4.12
Issued | $ / shares
Exercised | $ / shares 2.20
Expired / Terminated | $ / shares 2.00
Balance at ending | $ / shares $ 4.19