Securities (Tables)

3 Months Ended

Mar. 31, 2013

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
March 31, 2013
Agency obligations (a)		$	—	—	20,026	24,171	44,197	127	276	$	44,346
Agency RMBS (a)			—	—	4,327	146,115	150,442	2,723	124		147,843
State and political subdivisions			—	1,865	23,083	49,972	74,920	4,423	—		70,497
Trust preferred securities			—	—	—	660	660	128	161		693
	Total available-for-sale	$	—	1,865	47,436	220,918	270,219	7,401	561	$	263,379

December 31, 2012
Agency obligations (a)		$	—	—	20,065	19,460	39,525	187	19	$	39,357
Agency RMBS (a)			—	—	4,700	136,760	141,460	3,012	162		138,610
State and political subdivisions			111	1,830	21,006	54,891	77,838	5,222	—		72,616
Trust preferred securities			—	—	—	652	652	113	154		693
	Total available-for-sale	$	111	1,830	45,771	211,763	259,475	8,534	335	$	251,276
(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
March 31, 2013:
Agency obligations		$	24,673	276	—	—	$	24,673	276
Agency RMBS			25,554	124	—	—		25,554	124
Trust preferred securities			—	—	339	161	$	339	161
	Total	$	50,227	400	339	161	$	50,566	561

December 31, 2012:
Agency obligations		$	9,966	19	—	—	$	9,966	19
Agency RMBS			25,207	162	—	—		25,207	162
Trust preferred securities			—	—	346	154		346	154
	Total	$	35,173	181	346	154	$	35,519	335

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

				Quarter ended March 31,
(Dollars in thousands)				2013		2012
Balance, beginning of period			$	1,257	$	3,276
	Additions:
		Subsequent credit impairments		—		130
	Reductions:
		Securities sold		—		2,149
Balance, end of period			$	1,257	$	1,257

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

					Quarter ended March 31,
(Dollars in thousands)					2013		2012
Other-than-temporary impairment charges (included in earnings):
	Debt securities:
		Individual issuer trust preferred securities		$	—	$	130
			Total debt securities		—		130
Total other-than-temporary impairment charges (included in earnings)				$	—	$	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.
			Quarter ended March 31,
(Dollars in thousands)			2013		2012
Gross realized gains		$	161	$	473
Gross realized losses			—		(164)
Other-than-temporary impairment charges			—		(130)
	Realized gains, net	$	161	$	179