Investment Securities (Tables)

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule of Available for Sale Securities

The amortized cost and estimated fair value of securities available for sale along with gross unrealized gains and losses are summarized as follows:

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
December 31, 2020
U.S. treasury securities	$	245	$	—	$	—	$	245
U.S. agency	1,000		4		—		1,004
State, county and municipal securities	61,298		1,155		(65)		62,388
Corporate debt securities	4,250		1		(1)		4,250
Mortgage-backed securities	305,438		7,837		(348)		312,927
Total debt securities	$	372,231	$	8,997	$	(414)	$	380,814

(dollars in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
December 31, 2019
State, county and municipal securities	$	5,133	$	36	$	(54)	$	5,115
Corporate debt securities	2,811		11		(16)		2,806
Mortgage-backed securities	338,930		2,669		(2,188)		339,411
Total debt securities	$	346,874	$	2,716	$	(2,258)	$	347,332

Schedule of Unrealized Loss on Investments

The gross unrealized losses and estimated fair value of securities aggregated by category and length of time that securities have been in a continuous unrealized loss position are summarized as follows:

	Less Than 12 Months				12 Months or More				Total
(dollars in thousands)	Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses		Estimated Fair Value		Unrealized Losses
December 31, 2020
State, county and municipal securities	$	8,282	$	(65)	$	—	$	—	$	8,282	$	(65)
Corporate debt securities	999		(1)		—		—		999		(1)
Mortgage-backed securities	28,835		(77)		3,949		(271)		32,784		(348)
Total debt securities	$	38,116	$	(143)	$	3,949	$	(271)	$	42,065	$	(414)
December 31, 2019
State, county and municipal securities	$	3,257	$	(54)	$	—	$	—	$	3,257	$	(54)
Corporate debt securities	—		—		784		(16)		784		(16)
Mortgage-backed securities	60,860		(277)		119,110		(1,911)		179,970		(2,188)
Total debt securities	$	64,117	$	(331)	$	119,894	$	(1,927)	$	184,011	$	(2,258)

Schedule of Investments Classified by Contractual Maturity Date

This is often the case with mortgage-backed securities, which are disclosed separately in the table below.

	Securities Available for Sale
(dollars in thousands)	Amortized Cost		Fair Value
Due in one year or less	$	385	$	386
Due after one year through five years	3,925		3,969
Due after five years through ten years	18,246		18,499
Due after ten years	44,237		45,033
	$	66,793	$	67,887
Mortgage-backed securities	305,438		312,927
	$	372,231	$	380,814