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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Oct. 31, 2013
Apr. 30, 2013
Allowance for doubtful accounts receivable $ 127 $ 337
Property and equipment, accumulated depreciation 30,012 29,489
Capitalized software, accumulated amortization 8,289 7,664
Other intangibles, accumulated amortization $ 2,570 $ 2,256
Class A treasury stock, shares 4,444,815 4,444,815
Class A Common Shares
   
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 29,365,186 29,184,846
Class B Common Shares
   
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 2,587,086 2,587,086
Common stock, shares outstanding 2,587,086 2,587,086