Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

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, 2014 and 2013 are as follows (in thousands):

	Unrealized Gain (Loss) on Available for Sale Securities			Securities with Other-Than-Temporary Impairment Losses			Total
December 31, 2014
Net unrealized gains on securities available-for-sale	$	2,829		$	—		$	2,829
Unamortized losses on securities held-to-maturity transferred from available-for-sale	(1,328		)	—			(1,328		)
Securities with other-than-temporary impairment losses	—			(2,936		)	(2,936		)
Tax benefit (expense)	(586		)	1,146			560
Balance at December 31, 2014	$	915		$	(1,790	)	$	(875	)
December 31, 2013
Net unrealized losses on securities available-for-sale	$	(10,272	)	$	—		$	(10,272	)
Securities with other-than-temporary impairment losses	—			(3,461		)	(3,461		)
Tax benefit	4,004			1,349			5,353
Balance at December 31, 2013	$	(6,268	)	$	(2,112	)	$	(8,380	)

Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income [Table Text Block]

Amounts reclassified from accumulated other comprehensive income and the affected line items in the statements of income during the years ended December 31, 2014, 2013 and 2012 , were as follows:

	Amounts Reclassified from Other Comprehensive Income									Affected Line Item in the Statements of Income
	2014			2013			2012
Unrealized gains on available-for-sale securities	$	715		2,293			934			Securities gains, net (Total reclassified amount before tax)
	(279		)	(894		)	(364		)	Tax expense
Total reclassifications out of accumulated other comprehensive income	$	436		$	1,399		$	570		Net reclassified amount