Investment Securities (Tables)

12 Months Ended

Dec. 31, 2018

Investment Securities

Schedule of summary of investment securities

	At December 31, 2018
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
Collaterized mortgage obligations	$	20,463	$	6	$	(663)	$	19,806
Agency mortgage-backed securities		25,895		6		(914)		24,987
Municipal securities		34,205		78		(453)		33,830
U.S. Government agency securities		1,999		—		(40)		1,959
U.S. Treasury securities		1,001		—		(11)		990
Total securities available for sale	$	83,563	$	90	$	(2,081)	$	81,572

	At December 31, 2017
			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
(dollars in thousands)	Cost		Gains		Losses		Value
Collaterized mortgage obligations	$	24,063	$	20	$	(569)	$	23,514
Agency mortgage-backed securities		25,725		4		(500)		25,229
Municipal securities		35,453		339		(159)		35,633
U.S. Government agency securities		3,526		—		(46)		3,480
U.S. Treasury securities		1,501		—		(8)		1,493
Total securities available for sale	$	90,268	$	363	$	(1,282)	$	89,349

Schedule of gross unrealized losses and fair value, aggregated by investment category and length of time in continuous unrealized loss position

The following tables show the fair value and gross unrealized losses associated with the investment portfolio, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2018 and 2017:

	December 31, 2018
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(dollars in thousands)	Value		Loss		Value		Loss		Value		Loss
Collaterized mortgage obligations	$	1,625	$	(22)	$	17,546	$	(640)	$	19,171	$	(662)
Agency mortgage-backed securities		3,399		(74)		21,417		(840)		24,816		(914)
Municipal securities		13,162		(244)		8,415		(210)		21,577		(454)
U.S. Government agency securities		—		—		1,959		(40)		1,959		(40)
U.S. Treasury securities		—		—		990		(11)		990		(11)
	$	18,186	$	(340)	$	50,327	$	(1,741)	$	68,513	$	(2,081)

	At December 31, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
(dollars in thousands)	Value		Loss		Value		Loss		Value		Loss
Collaterized mortgage obligations	$	6,531	$	(63)	$	15,678	$	(507)	$	22,209	$	(570)
Agency mortgage-backed securities		6,802		(80)		18,218		(420)		25,020		(500)
Municipal securities		2,396		(11)		6,230		(148)		8,626		(159)
U.S. Government agency securities		2,965		(37)		515		(9)		3,480		(46)
U.S. Treasury securities		1,494		(7)		—		—		1,494		(7)
	$	20,188	$	(198)	$	40,641	$	(1,084)	$	60,829	$	(1,282)

Schedule of contractual maturities of investment securities

	At December 31, 2018
	Amortized		Fair
(dollars in thousands)	Cost		Value
Due within one year	$	932	$	927
Due over one to five years		1,310		1,297
Due over five to ten years		7,192		7,136
Due over ten years		27,771		27,419
Collaterized mortgage obligations		20,463		19,806
Agency mortgage-backed securities		25,895		24,987
Total securities available for sale	$	83,563	$	81,572