Condensed Statement of Stockholders' Equity (Unaudited) (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2012	$ 8	$ 149,993	$ 2,648	$ (4,602)	$ 148,047
Balance (in Shares) at Dec. 31, 2012	7,500
Common dividends declared			(5,175)		(5,175)
Net income			10,976		10,976
Other comprehensive loss				(15,840)	(15,840)
Balance at Mar. 31, 2013	$ 8	$ 149,993	$ 8,449	$ (20,442)	$ 138,008
Balance (in Shares) at Mar. 31, 2013	7,500