SECURITIES (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of Equity securities gains and losses [Table Text Block]

The following table represents a summary of the gains and losses that relates to equity securities for the periods indicated:

	Years Ended December 31
	2019		2018			2017
Net gains (losses) recognized during the period on equity securities	$	1,566	$	(1,225	)	n/a
Less: net gains recognized during the period on equity securities sold during the period	18		874			n/a
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date	$	1,548	$	(2,099	)	n/a

Schedule of Available-for-sale Securities and Held-to-maturity Securities

The following table presents a summary of the amortized cost, gross unrealized holding gains and losses and fair value of securities available for sale and securities held to maturity as of the dates indicated:

	December 31, 2019									December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	32,473	$	642	$	—		$	33,115	$	32,477	$	—	$	(439	)	$	32,038
Agency mortgage-backed securities	243,548		3,456		(4		)	247,000		222,491		1,020		(3,406		)	220,105
Agency collateralized mortgage obligations	87,305		1,225		(19		)	88,511		138,149		197		(3,435		)	134,911
State, county, and municipal securities	1,377		19		—			1,396		1,719		16		—			1,735
Single issuer trust preferred securities issued by banks	488		5		—			493		717		—		(10		)	707
Pooled trust preferred securities issued by banks and insurers	1,488		—		(374		)	1,114		1,678		—		(349		)	1,329
Small business administration pooled securities	54,024		771		—			54,795		53,317		—		(1,390		)	51,927
Total available for sale securities	420,703		6,118		(397		)	426,424		450,548		1,233		(9,029		)	442,752
Held to maturity securities
U.S. government agency securities	12,874		123		—			12,997		—		—		—			—
U.S. treasury securities	4,032		21		—			4,053		1,004		11		—			1,015
Agency mortgage-backed securities	397,414		8,445		(57		)	405,802		252,484		1,548		(3,104		)	250,928
Agency collateralized mortgage obligations	293,662		4,501		(849		)	297,314		332,775		869		(6,920		)	326,724
Single issuer trust preferred securities issued by banks	1,500		—		(10		)	1,490		1,500		—		(10		)	1,490
Small business administration pooled securities	31,324		338		(55		)	31,607		23,727		105		(349		)	23,483
Total held to maturity securities	740,806		13,428		(971		)	753,263		611,490		2,533		(10,383		)	603,640
Total	$	1,161,509	$	19,546	$	(1,368	)	$	1,179,687	$	1,062,038	$	3,766	$	(19,412	)	$	1,046,392

Schedule of Contractual Maturities of Securities

A schedule of the contractual maturities of securities available for sale and securities held to maturity as of December 31, 2019 is presented below:

	Due in one year or less				Due after one year to five years				Due after five to ten years				Due after ten years				Total
	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
	(Dollars in thousands)
Available for sale securities
U.S. government agency securities	$	10,000	$	10,003	$	10,002	$	10,154	$	12,471	$	12,958	$	—	$	—	$	32,473	$	33,115
Agency mortgage-backed securities	—		—		70,945		71,305		54,798		56,181		117,805		119,514		243,548		247,000
Agency collateralized mortgage obligations	—		—		—		—		—		—		87,305		88,511		87,305		88,511
State, county, and municipal securities	—		—		1,188		1,193		189		203		—		—		1,377		1,396
Single issuer trust preferred securities issued by banks	—		—		—		—		—		—		488		493		488		493
Pooled trust preferred securities issued by banks and insurers	—		—		—		—		—		—		1,488		1,114		1,488		1,114
Small business administration pooled securities	—		—		—		—		—		—		54,024		54,795		54,024		54,795
Total available for sale securities	$	10,000	$	10,003	$	82,135	$	82,652	$	67,458	$	69,342	$	261,110	$	264,427	$	420,703	$	426,424
Held to maturity securities
U.S. government agency securities	$	4,962	$	4,989	$	7,912	$	8,008	$	—	$	—	$	—	$	—	$	12,874	$	12,997
U.S. Treasury securities	—		—		4,032		4,053		—		—		—		—		4,032		4,053
Agency mortgage-backed securities	—		—		10,812		10,818		35,656		36,151		350,946		358,833		397,414		405,802
Agency collateralized mortgage obligations	—		—		—		—		—		—		293,662		297,314		293,662		297,314
Single issuer trust preferred securities issued by banks	—		—		—		—		1,500		1,490		—		—		1,500		1,490
Small business administration pooled securities	—		—		—		—		—		—		31,324		31,607		31,324		31,607
Total held to maturity securities	4,962		4,989		22,756		22,879		37,156		37,641		675,932		687,754		740,806		753,263
Total	$	14,962	$	14,992	$	104,891	$	105,531	$	104,614	$	106,983	$	937,042	$	952,181	$	1,161,509	$	1,179,687

Schedule of Gross Unrealized Losses and Fair Value of Investments

		December 31, 2019
		Less than 12 months					12 months or longer					Total
Description of securities	# of holdings	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
		(Dollars in thousands)
Agency mortgage-backed securities	12	$	34,009	$	(59	)	$	243	$	(2	)	$	34,252	$	(61	)
Agency collateralized mortgage obligations	17	48,476		(215		)	37,382		(653		)	85,858		(868		)
Single issuer trust preferred securities issued by banks and insurers	1	—		—			1,490		(10		)	1,490		(10		)
Pooled trust preferred securities issued by banks and insurers	1	—		—			1,114		(374		)	1,114		(374		)
Small business administration pooled securities	1	7,349		(55		)	—		—			7,349		(55		)
Total temporarily impaired securities	32	$	89,834	$	(329	)	$	40,229	$	(1,039	)	$	130,063	$	(1,368	)
		December 31, 2018
		Less than 12 months					12 months or longer					Total
Description of securities	# of holdings	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
		(Dollars in thousands)
U.S. government agency securities	3	$	9,960	$	(43	)	$	22,078	$	(396	)	$	32,038	$	(439	)
Agency mortgage-backed securities	144	104,616		(1,363		)	222,850		(5,147		)	327,466		(6,510		)
Agency collateralized mortgage obligations	48	57,871		(398		)	279,229		(9,957		)	337,100		(10,355		)
Single issuer trust preferred securities issued by banks and insurers	2	2,197		(20		)	—		—			2,197		(20		)
Pooled trust preferred securities issued by banks and insurers	1	—		—			1,329		(349		)	1,329		(349		)
Small business administration pooled securities	7	28,257		(662		)	40,621		(1,077		)	68,878		(1,739		)
Total temporarily impaired securities	205	$	202,901	$	(2,486	)	$	566,107	$	(16,926	)	$	769,008	$	(19,412	)