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12. Employee and Director Benefit Programs (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Employee And Director Benefit Programs Details    
Benefit obligation at beginning of period $ 2,923 $ 2,607
Service cost 430 303
Interest cost 89 64
Benefits paid (60) (51)
Benefit obligation at end of period $ 3,382 $ 2,923