Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity (Details)

v3.8.0.1
Shareholders' Equity (Details) - Warrant
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Additional information for warrants outstanding  
Number of warrants, beginning of period (in shares) | shares 639,598
Number of warrants, exercised (in shares) | shares (416,295)
Number of warrants, expired (in shares) | shares (223,303)
Number of warrants, end of period (in shares) | shares 0
Weighted average exercise price, outstanding at beginning of period (in dollars per share) | $ / shares $ 0.86
Weighted average exercise price, exercised (in dollars per share) | $ / shares 0.86
Weighted average exercise price, expired (in dollars per share) | $ / shares 0.86
Weighted average exercise price, outstanding and Exercisable at end of period (in dollars per share) | $ / shares $ 0.00