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Securities (Tables)

12 Months Ended

Dec. 31, 2014

Investments debt and equity securities [Abstract]

Available-for-sale Securities [Table Text Block]

			1 year	1 to 5	5 to 10	After 10	Fair	Gross Unrealized		Amortized
(Dollars in thousands)			or less	years	years	years	Value	Gains	Losses	Cost
December 31, 2014
Agency obligations (a)		$	—	30,947	14,869	14,433	60,249	375	830	$	60,704
Agency RMBS (a)			—	—	14,523	120,520	135,043	1,597	616		134,062
State and political subdivisions			—	502	15,520	56,289	72,311	3,379	34		68,966
	Total available-for-sale	$	—	31,449	44,912	191,242	267,603	5,351	1,480	$	263,732
December 31, 2013
Agency obligations (a)		$	—	—	23,247	21,275	44,522	—	4,557	$	49,079
Agency RMBS (a)			—	—	8,306	154,052	162,358	976	4,733	$	166,115
State and political subdivisions			—	1,735	21,366	41,238	64,339	1,560	459	$	63,238
	Total available-for-sale	$	—	1,735	52,919	216,565	271,219	2,536	9,749	$	278,432
(a) Includes securities issued by U.S. government agencies or government sponsored entities.

Available-for-sale Securities, Continuous Unrealized Loss Position [Table Text Block]

			Less than 12 Months		12 Months or Longer		Total
			Fair	Unrealized	Fair	Unrealized	Fair		Unrealized
(Dollars in thousands)			Value	Losses	Value	Losses	Value		Losses
December 31, 2014:
Agency obligations		$	—	—	24,126	830	24,126	$	830
Agency RMBS			9,078	22	42,744	594	51,822		616
State and political subdivisions			4,257	34	—	—	4,257		34
	Total	$	13,335	56	66,870	1,424	80,205	$	1,480


December 31, 2013:
Agency obligations		$	35,932	3,181	8,590	1,376	44,522	$	4,557
Agency RMBS			109,774	4,394	7,683	339	117,457		4,733
State and political subdivisions			9,575	459	—	—	9,575		459
	Total	$	155,281	8,034	16,273	1,715	171,554	$	9,749

Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]

				Year ended December 31
(Dollars in thousands)				2014	2013	2012
Balance, beginning of period			$	—	1,257	3,276
	Additions:
		Subsequent credit impairments		—	—	130
	Reductions:
		Securities sold		—	(757)	(2,149)
		Securities fully written down and deemed worthless		—	(500)	—
Balance, end of period			$	—	—	1,257

Available For Sale Securities Changes In Other Than Temporary Impairment Losses [Table Text Block]

					Year ended December 31
(Dollars in thousands)					2014	2013	2012
Other-than-temporary impairment charges (included in earnings):
	Debt securities:
		Agency RMBS		$	333	—	—
		Individual issuer trust preferred securities		$	—	—	130
			Total debt securities	$	333	—	130
Total other-than-temporary impairment charges (included in earnings)				$	333	—	130
Other-than-temporary impairment on debt securities:
	Recorded as part of gross realized losses:
		Credit-related		$	—	—	130
		Securities with intent to sell			333	—	—
	Recorded directly to other comprehensive income for non-credit
		related impairment			—	—	—
Total other-than-temporary impairment on debt securities				$	333	—	130

Schedule of Realized Gain (Loss) [Table Text Block]

Realized Gains and Losses

The following table presents the gross realized gains and losses on sales and other-than-temporary impairment charges
related to securities.

			Year ended December 31
(Dollars in thousands)			2014	2013	2012
Gross realized gains		$	467	745	1,005
Gross realized losses			(664)	(94)	(196)
Other-than-temporary impairment charges			(333)	—	(130)
	Realized gains, net	$	(530)	651	679

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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- Definition

Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income.

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