Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Line Items]      
Federal and state net operating losses acquired in business combinations $ 1,373    
Valuation allowance additions in the tax provision 1,671 3,324  
Valuation allowance reductions 528 323  
Valuation allowance reported as discountinued operations   2,038  
Reserve balance 13,552 3,036 5,465
Interest accrued, net of federal benefit $ 1,157 $ 707 $ 1,072
Maximum [Member]
     
Income Taxes [Line Items]      
Federal net operating losses expire period 2023    
State net operating losses expire period 2031    
Minimum [Member]
     
Income Taxes [Line Items]      
Federal net operating losses expire period 2012    
State net operating losses expire period 2012