Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The components of accumulated other comprehensive income included in stockholders’ equity as of December 31, 2012 and 2011 are as follows (in thousands):

	Unrealized Gain (Loss) on Available for Sale Securities			Securities with Other-Than-Temporary Impairment Losses			Total
December 31, 2012
Net unrealized gains on securities available-for-sale	$	11,836		$	—		$	11,836
Securities with other-than-temporary impairment losses	—			(4,389		)	(4,389		)
Tax benefit (expense)	(4,614		)	1,711			(2,903		)
Balance at December 31, 2012	$	7,222		$	(2,678	)	$	4,544
December 31, 2011
Net unrealized gains on securities available-for-sale	$	10,066		$	—		$	10,066
Securities with other-than-temporary impairment losses	—			(4,906		)	(4,906		)
Tax benefit (expense)	(3,924		)	1,912			(2,012		)
Balance at December 31, 2011	$	6,142		$	(2,994	)	$	3,148