8. Shareholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 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 Repurchased During Period, Shares	0	0
April 4, 2012
Stock Repurchase Program, Authorized Amount	$ 1,000