Available for Sale Securities (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Costs and Fair Value of Securities Available for Sale

Amortized costs and fair values of available for sale securities are summarized as follows:

December 31, 2018	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Obligations of states and political subdivisions	$	11,348	$	25	$	(204	)	$	11,169
Government-sponsored mortgage-backed securities		52,363		4		(1,992	)		50,375
Corporate collateralized mortgage obligations		410		1		(1	)		410
Asset-backed securities		3,530		2		(1	)		3,531
Certificates of deposit		249		—		(3	)		246
Total available for sale securities	$	67,900	$	32	$	(2,201	)	$	65,731

December 31, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Obligations of states and political subdivisions	$	20,545	$	243	$	(158	)	$	20,630
Government-sponsored mortgage-backed securities		61,218		41		(1,235	)		60,024
Corporate collateralized mortgage obligations		696		6		—			702
Asset-backed securities		4,835		9		(12	)		4,832
Corporate bonds		1,495		21		—			1,516
Certificates of deposit		1,246		5		—			1,251
Total available for sale securities	$	90,035	$	325	$	(1,405	)	$	88,955

Summary of Gross Unrealized Losses on Securities Available-for-sale and Fair Values, Aggregated by Investment category and Length of Time Individual Securities Have Been in a Continuous Unrealized Loss Position

The following table presents the portion of the Bank’s portfolio which has gross unrealized losses, reflecting the length of time that individual securities have been in a continuous unrealized loss position:

	Less than 12 months					12 months or more					Total
December 31, 2018	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Obligations of states and political subdivisions	$	1,567	$	(5	)	$	6,909	$	(199	)	$	8,476	$	(204	)
Government-sponsored mortgage-backed securities		29		—			49,549		(1,992	)		49,578		(1,992	)
Corporate collateralized mortgage obligations		204		—			147		(1	)		351		(1	)
Asset-backed securities		813		(1	)		—		—			813		(1	)
Certificates of deposit		—		—			246		(3	)		246		(3	)
Total	$	2,613	$	(6	)	$	56,851	$	(2,195	)	$	59,464	$	(2,201	)

	Less than 12 months					12 months or more					Total
December 31, 2017	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Obligations of states and political subdivisions	$	1,435	$	(18	)	$	5,866	$	(140	)	$	7,301	$	(158	)
Government-sponsored mortgage-backed securities		18,507		(131	)		36,176		(1,104	)		54,683		(1,235	)
Corporate collateralized mortgage obligations		8		—			—		—			8		—
Asset-backed securities		—		—			936		(12	)		936		(12	)
Certificates of deposit		249		—			—		—			249		—
Total	$	20,199	$	(149	)	$	42,978	$	(1,256	)	$	63,177	$	(1,405	)

Summary of Amortized Costs and Fair Values of Securities Available-for-sale, by Contractual Maturity

The amortized cost and fair value of available for sale securities by contractual maturity are shown below. Expected maturities will differ from contractual maturities in mortgage-backed securities since the anticipated maturities are not readily determinable. Therefore, these securities are not included in the maturity categories in the following maturity summary listed below:

	December 31, 2018
	Amortized Cost		Fair Value
Due in one year or less	$	1,940	$	1,939
Due after one through 5 years		6,443		6,327
Due after 5 through 10 years		3,214		3,149
Due after 10 years		—		—
Subtotal		11,597		11,415
Mortgage-related securities		52,773		50,785
Asset-backed securities		3,530		3,531
Total	$	67,900	$	65,731

Summary of Proceeds from Sales of Securities Available-for-sale, as well as Gross Gains and Losses

The following is a summary of the proceeds from sales of securities available for sale, as well as gross gains and losses, for each of the periods listed below:

	Years ended December 31,
	2018			2017
Proceeds from sales of available for sale securities	$	14,392		$	—
Gross gains		137			—
Gross losses		(70	)		—