Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 5)

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Income Taxes (Details 5) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Reconciliation of unrecognized tax benefit      
Unrecognized tax benefits balance at beginning of year $ 364 $ 415 $ 326
Additions based on tax positions related to the current year 517 128 107
Additions (deletions) based on tax positions related to prior years 474 (55) (9)
Reductions for lapses of statute of limitations (258) (235) (8)
Unrecognized tax benefits balance at end of year $ 1,097 $ 364 $ 415