Impairment of Investment Securities (Tables)

3 Months Ended

Mar. 31, 2020

Impairment of Investment Securities Disclosure [Abstract]

Schedule of Unrealized Losses and Estimated Fair Values

The following table presents the gross unrealized losses and estimated fair values at March 31, 2020 for both available for sale and held to maturity securities by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months				12 Months or More				Total
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Commercial	$	25,481	$	(215)	$	—	$	—	$	25,481	$	(215)
Total Securities	$	25,481	$	(215)	$	—	$	—	$	25,481	$	(215)

The following table presents the gross unrealized losses and estimated fair values at December 31, 2019 by investment category and time frame for which securities have been in a continuous unrealized loss position:

	Less Than 12 Months				12 Months or More				Total
	Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses		Estimated Fair Value		Gross Unrealized Losses
	(dollars in thousands)
Obligations of U.S. Government Agencies:
Mortgage-Backed Securities - Commercial	$	54,501	$	(201)	$	16,365	$	(149)	$	70,866	$	(350)
Obligations of U.S. Government-Sponsored Enterprises:
Mortgage-Backed Securities – Residential	111,969		(436)		219,015		(2,801)		330,984		(3,237)
Total Securities	$	166,470	$	(637)	$	235,380	$	(2,950)	$	401,850	$	(3,587)