Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Data [Abstract]

Quarterly Financial Data (Unaudited)

	Interest		Net Interest		Net Income (Loss) Attributable to Common			Earnings (Loss) per Share
	Income		Income		Shares			Basic			Diluted
2012
First quarter	$	15,553,000	$	11,869,000	$	2,552,000		$	0.30		$	0.28
Second quarter		14,930,000		11,511,000		3,288,000			0.38			0.36
Third quarter		14,768,000		11,584,000		2,616,000			0.30			0.30
Fourth quarter		14,666,000		11,737,000		3,049,000			0.35			0.35
2011
First quarter	$	19,159,000	$	13,449,000	$	1,088,000		$	0.13		$	0.12
Second quarter		18,460,000		13,158,000		2,381,000			0.28			0.27
Third quarter		17,044,000		12,295,000		2,682,000			0.31			0.30
Fourth quarter		16,406,000		12,335,000		29,991,000			3.49			3.37
2010
First quarter	$	23,189,000	$	14,306,000	$	(2,963,000	)	$	(0.35	)	$	(0.35	)
Second quarter		22,696,000		14,421,000		(684,000	)		(0.08	)		(0.08	)
Third quarter		21,734,000		13,935,000		(5,682,000	)		(0.67	)		(0.67	)
Fourth quarter		20,524,000		13,687,000		(5,282,000	)		(0.62	)		(0.62	)