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UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data
Sep. 30, 2011
Dec. 31, 2010
Current assets:  
Trade accounts receivable, net of allowances for doubtful accounts$ 5,093$ 3,540
Other intangibles, net of accumulated amortization$ 24,408$ 19,603
Shareholders' equity:  
Common stock, par value (in dollars per share)$ 0.01$ 0.01
Common stock, authorized (in shares)100,000,000100,000,000
Common stock, outstanding (in shares)14,088,07714,079,608
Treasury stock (in shares)50,00050,000
Series A Preferred Stock [Member]
  
Shareholders' equity:  
Preferred stock, voting rights1/10th vote per share1/10th vote per share
Preferred stock, par value (in dollars per share)$ 1.00$ 1.00
Preferred stock, aggregate liquidation preference$ 100$ 100
Preferred stock, designated (in shares)1,1221,122
Preferred stock, issued (in shares)1,1221,122
Preferred stock, outstanding (in shares)1,1221,122
Series B Preferred Stock [Member]
  
Shareholders' equity:  
Preferred stock, voting rights1/10th vote per share1/10th vote per share
Preferred stock, par value (in dollars per share)$ 0.0001$ 0.0001
Preferred stock, stated value (in dollars per share)$ 100$ 100
Preferred stock, aggregate liquidation preference$ 1,500$ 1,500
Preferred stock, designated (in shares)15,00015,000
Preferred stock, issued (in shares)15,00015,000
Preferred stock, outstanding (in shares)15,00015,000