General form of registration statement for all companies including face-amount certificate companies

Stockholders' Equity (Details 2)

v3.5.0.2
Stockholders' Equity (Details 2) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at beginning 397,712 344,778 247,674
Exercisable at beginning 238,954 187,583 147,209
Granted 10,000 82,550 109,483
Exercised   (5,416)
Cancelled or forfeited (3,000) (29,616) (6,963)
Outstanding at ending 404,710 397,712 344,778
Exercisable at ending   238,954 187,583
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning $ 36.60 $ 40.80 $ 44.10
Exercisable at beginning 42.30 46.80 50.40
Granted 9.30 24.60 32.70
Exercised   26.40
Cancelled or forfeited 32.40 44.40 42.60
Outstanding at ending $ 36.00 36.60 40.80
Exercisable at ending   $ 42.30 $ 46.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Intrinsic Value [Abstract]      
Outstanding at beginning [1] $ 4,800 $ 1,493,368
Exercisable at beginning [1] 600 566,589
Outstanding at ending [1]   4,800
Exercisable at ending [1]   $ 600
Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning   $ 24.00 $ 26.40
Exercisable at beginning   30.00 26.40
Granted   22.20 24.00
Exercised   26.40
Cancelled or forfeited   24.00 26.40
Outstanding at ending     24.00
Exercisable at ending     30.00
Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]      
Outstanding at beginning   289.20 289.20
Exercisable at beginning   289.20 289.20
Granted   31.80 43.80
Exercised   26.40
Cancelled or forfeited   $ 96.00 289.20
Outstanding at ending     289.20
Exercisable at ending     $ 289.20
[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.