Securities (Tables)

3 Months Ended

Mar. 31, 2013

Securities

Schedule of amortized cost and estimated fair value of securities

March 31, 2013	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(Dollars in thousands)
Securities available-for-sale:
Agency mortgage-backed securities	$	262,710	$	8,444	$	(77	)	$	271,077
Corporate bonds		53,681		1,269		(58	)		54,892
Trust preferred securities		20,789		150		(108	)		20,831
Total	$	337,180	$	9,863	$	(243	)	$	346,800
Securities held-to-maturity:
Agency mortgage-backed securities	$	15,185	$	6	$	(298	)	$	14,893
Municipals—tax exempt		53,098		1		(2,333	)		50,766
Total	$	68,283	$	7	$	(2,631	)	$	65,659

December 31, 2012	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	(Dollars in thousands)
Securities available-for-sale:
Agency mortgage-backed securities	$	281,598	$	9,668	$	(22	)	$	291,244
Corporate bonds		53,739		1,849		—			55,588
Trust preferred securities		20,769		375		(64	)		21,080
Total	$	356,106	$	11,892	$	(86	)	$	367,912
Securities held-to-maturity:
Agency mortgage-backed securities	$	16,659	$	2	$	(177	)	$	16,484
Municipals—tax exempt		34,813		80		(413	)		34,480
Total	$	51,472	$	82	$	(590	)	$	50,964

Schedule of amortized cost and estimated fair values of securities, by contractual maturity

	Available-for-sale
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Due after one through five years	$	924	$	963
Due after five through ten years		52,757		53,929
Due after ten years		20,789		20,831
Agency mortgage-backed securities	$	262,710		271,077
Total	$	337,180	$	346,800

	Held-to-maturity
	Amortized Cost		Estimated Fair Value
	(Dollars in thousands)
Due after five through ten years	$	1,085	$	1,060
Due after ten years		52,013		49,706
Agency mortgage-backed securities		15,185		14,893
Total	$	68,283	$	65,659