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CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
ASSETS    
PROPERTY AND EQUIPMENT, accumulated depreciation $ 19,663 $ 18,735
ACQUIRED TECHNOLOGY, accumulated amortization 17,029 17,000
SHAREHOLDERS' EQUITY:    
Preferred Stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred Stock, shares issued (in shares) 200,000 200,000
Preferred Stock, shares outstanding (in shares) 200,000 200,000
Preferred Stock, liquidation value per share (in dollars per share) $ 7.50 $ 7.50
Preferred Stock, liquidation value $ 1,500 $ 1,500
Common Stock, par value (in dollars per share) $ 0.01 $ 0.01
Common Stock, shares authorized (in shares) 100,000,000 100,000,000
Common Stock, shares issued (in shares) 46,453,060 46,113,296
Common Stock, shares outstanding (in shares) 46,453,060 46,113,296