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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2013
Vote
Dec. 31, 2012
Vote
Accounts receivable, less allowance $ 198 $ 292
Preferred Stock, par value $ 0.01 $ 0.01
Preferred Stock, shares authorized 1,000,000 1,000,000
Preferred Stock, shares issued      
Common Stock, votes per share 1 1
Common Stock, par value $ 0.01 $ 0.01
Common Stock, shares authorized 62,000,000 62,000,000
Common Stock, shares issued 38,453,439 38,442,175
Common Stock, shares outstanding 26,781,953 30,043,777
Treasury stock, shares 11,671,486 8,398,398
Class B Common Stock [Member]
    
Common Stock, votes per share 10 10
Common Stock, par value $ 0.01 $ 0.01
Common Stock, shares authorized 14,000,000 14,000,000
Common Stock, shares issued 11,758,218 11,767,052
Common Stock, shares outstanding 11,758,218 11,767,052