Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.7.0.1
Stockholders' Equity (Details)
3 Months Ended
Mar. 31, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Balance at beginning | shares 337,441
Granted | shares 2,000
Forfeited | shares (23,875)
Balance at ending | shares 315,566
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]  
Balance at beginning | $ / shares $ 42.07
Granted | $ / shares 2.55
Forfeited | $ / shares 45.53
Balance at ending | $ / shares $ 42.33