Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details)

v3.7.0.1
Stockholders' Equity (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at beginning 298,283 258,583
Exercisable at beginning 179,216 140,687
Granted 53,750 61,912
Exercised
Cancelled or forfeited (14,592) (22,212)
Outstanding at ending 337,441 298,283
Exercisable at ending 245,989 179,216
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning $ 48.73 $ 54.38
Exercisable at beginning 56.40 62.27
Granted 6.40 32.80
Exercised  
Cancelled or forfeited 12.67 59.20
Outstanding at ending 42.07 48.73
Exercisable at ending $ 38.71 $ 56.40
Share-based Compensation Arrangement by Share-based Payment Award, Options, Intrinsic Value [Abstract]    
Outstanding at beginning [1] $ 4,800
Exercisable at beginning [1] 600
Outstanding at ending [1]
Exercisable at ending [1]
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning $ 29.60 $ 32.00
Exercisable at beginning 29.60 40.00
Granted 5.00 29.60
Exercised  
Cancelled or forfeited 5.00 32.00
Outstanding at ending 5.00 29.60
Exercisable at ending 5.00 29.60
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning 385.60 385.60
Exercisable at beginning 385.60 385.60
Granted 12.40 42.40
Exercised  
Cancelled or forfeited 385.60 128
Outstanding at ending 385.60 385.60
Exercisable at ending $ 385.60 $ 385.60
[1] Intrinsic value is calculated as the estimated fair value of the Company's stock at the end of the related period less the option exercise price of in-the-money options.