Investment Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investments [Abstract]

Summary of Investments in Available-for-sale and Held-to-maturity Securities

The following is a summary of the Company's investments in available for sale and held to maturity securities as of December 31, 2019 and 2018: 

As of December 31, 2019	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(Dollars in thousands)
Available for sale:
Corporate debt obligations	$	500	$	—	$	—	$	500
Residential mortgage-backed securities	25,989		282		196		26,075
Collateralized mortgage obligations	37		1		—		38
Total available for sale	$	26,526	$	283	$	196	$	26,613
Held to maturity:
States and political subdivisions	$	1,167	$	263	$	—	$	1,430

As of December 31, 2018	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(Dollars in thousands)
Available for sale:
Corporate debt obligations	$	500	$	—	$	—	$	500
Residential mortgage-backed securities	31,553		74		906		30,721
Collateralized mortgage obligations	56		1		—		57
Total available for sale	$	32,109	$	75	$	906	$	31,278
Held to maturity:
States and political subdivisions	$	1,113	$	179	$	—	$	1,292

Schedule of Investments Classified by Contractual Maturity

The amortized cost and fair value of debt securities classified as available for sale and held to maturity, by contractual maturity as of December 31, 2019, are as follows:

	Amortized Cost		Fair Value
	(Dollars in thousands)
Available for sale:
Due within one year	$	—	$	—
Due after one year through five years	156		150
Due after five years through ten years	11,879		11,942
Due after ten years	14,491		14,521
Total available for sale	$	26,526	$	26,613
Held to maturity:
Due within one year	$	—	$	—
Due after one year through five years	—		—
Due after five years through ten years	1,167		1,430
Due after ten years	—		—
Total held to maturity	$	1,167	$	1,430

Schedule Gross Unrealized Losses and Fair Value of Investments with Continuous Unrealized Loss Position

The following tables show the gross unrealized losses and fair value of the Company's investments which are aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2019 and December 31, 2018.

As of December 31, 2019	Less Than 12 Months				12 Months or Greater				Total
Description of Securities	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Available for sale:
Residential mortgage-backed securities	$	232	$	1	$	10,271	$	195	$	10,503	$	196
Total available for sale	$	232	$	1	$	10,271	$	195	$	10,503	$	196

As of December 31, 2018	Less Than 12 Months				12 Months or Greater				Total
Description of Securities	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(Dollars in thousands)
Available for sale:
Residential mortgage-backed securities	$	12,665	$	257	$	14,527	$	649	$	27,192	$	906
Total available for sale	$	12,665	$	257	$	14,527	$	649	$	27,192	$	906