Annual report pursuant to Section 13 and 15(d)

Capital Stock and Stock Restrictions (Details Textual)

v3.4.0.3
Capital Stock and Stock Restrictions (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2016
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
May. 13, 2016
Mar. 31, 2013
Aug. 29, 2011
Preferred Stock [Member]              
Class of Stock [Line Items]              
Preferred Stock, Shares Authorized   1,000,000 1,000,000        
Class A Common Stock [Member]              
Class of Stock [Line Items]              
Treasury Stock, Shares, Acquired   94,000 336,000 162,000      
Common Stock, Shares, Outstanding   47,184,725 46,839,361 45,853,000   44,970,000  
Class B Common Stock [Member]              
Class of Stock [Line Items]              
Common Stock, Shares, Outstanding   13,937,151 13,937,151 13,937,000   13,937,000  
August Two Thousand Eleven Authorization [Member] | Class A Common Stock [Member]              
Class of Stock [Line Items]              
Stock Repurchase Program, Authorized Amount             $ 20.0
Stock Repurchase Program Remaining Authorized Repurchases Amount   $ 0.1          
Outside of Publically Announced Repurchase Program [Member] | Class A Common Stock [Member]              
Class of Stock [Line Items]              
Shares Paid for Tax Withholding for Share Based Compensation   93,903 335,890 161,699      
Treasury Stock Acquired, Average Cost Per Share   $ 1.16 $ 2.57 $ 2.22      
Voting trust and other trusts [Member] | Class B Common Stock [Member]              
Class of Stock [Line Items]              
Common Stock, Shares, Outstanding   13,937,150          
Subsequent Event [Member] | Voting Trust [Member]              
Class of Stock [Line Items]              
Voting Control         50.30%    
Subsequent Event [Member] | Voting trust and other trusts [Member]              
Class of Stock [Line Items]              
Voting Control         54.20%    
Stock Options [Member]              
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   1,567,500          
Stock Options [Member] | Subsequent Event [Member]              
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 1,300,000            
Restricted Stock Units (RSUs) [Member]              
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   1,502,500 780,500 1,182,000      
Restricted Stock Units (RSUs) [Member] | Subsequent Event [Member]              
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,300,000