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8. Shareholders' Equity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 6 Months Ended 12 Months Ended 3 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
April 4, 2012
Common Stock, Shares Authorized 20,000,000 20,000,000  
Common Stock, Par Value $ 0.01 $ 0.01  
Common Stock, Shares Issued 10,153,633 10,153,633  
Common Stock, Shares Outstanding 10,091,822 10,091,822  
Treasury Stock, Number of Shares Held 61,811 61,811  
Stock Repurchase Program, Authorized Amount     $ 1,000
Stock Repurchased During Period, Shares 0 0