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Consolidated Statements of Stockholders' Equity (USD $)
In Thousands
Total
Common stock
Additional Paid-in Capital
Accumulated Deficit
Treasury stock
Balances at Dec. 31, 2010$ 30,658$ 2$ 349,747$ (242,327)$ (76,764)
Balances (in shares) at Dec. 31, 2010 25,877  2,862
Increase (Decrease) in Stockholders' Equity     
Stock-based compensation to employees and directors2,411 2,411  
Common stock issued upon vesting of restricted stock 314   
Purchase of treasury stock(1,602)   (1,602)
Purchase of treasury stock (in shares)    98
Lapse of rescission rights of redeemable common stock (Note 9)582 582  
Lapse of rescission rights of redeemable common stock (Note 9) (in shares) 46   
Deemed dividend related to redeemable common stock(12) (12)  
Net loss(16,029)  (16,029) 
Balances at Sep. 30, 2011$ 16,008$ 2$ 352,728$ (258,356)$ (78,366)
Balances (in shares) at Sep. 30, 2011 26,237  2,960