Summary of estimated fair value and gross unrealized losses aggregated by security category and length of time such securities have been in a continuous unrealized loss position

The estimated fair value and gross unrealized losses aggregated by security category and length of time such securities have been in a continuous unrealized loss position, is summarized as follows (dollars in thousands):


	March 31, 2022
	Less than 12 Months				12 Months or Longer				Total
	Estimated		Unrealized		Estimated		Unrealized		Estimated		Unrealized
	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities available for sale:
U.S. Government and agency obligations	$	246,632	$	(8,003)	$	75,613	$	(4,151)	$	322,245	$	(12,154)
Municipal obligations		88,883		(270)		—		—		88,883		(270)
Other debt securities		45		(1)		154		(51)		199		(52)
	$	335,560	$	(8,274)	$	75,767	$	(4,202)	$	411,327	$	(12,476)

Securities held to maturity:
Corporate debt securities	$	18,983	$	(1,017)	$	—	$	—	$	18,983	$	(1,017)
Municipal obligations		4,894		(115)		—		—		4,894		(115)
	$	23,877	$	(1,132)	$	—	$	—	$	23,877	$	(1,132)


	June 30, 2021
	Less than 12 Months				12 Months or Longer				Total
	Estimated		Unrealized		Estimated		Unrealized		Estimated		Unrealized
	Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
Securities available for sale:
U.S. Government and agency obligations	$	85,518	$	(235)	$	—	$	—	$	85,518	$	(235)
Municipal obligations		21,484		(9)		—		—		21,484		(9)
Other debt securities		9		(1)		165		(44)		174		(45)
	$	107,011	$	(245)	$	165	$	(44)	$	107,176	$	(289)

Securities held to maturity:
Corporate debt securities	$	6,980	$	(20)	$	—	$	—	$	6,980	$	(20)
	$	6,980	$	(20)	$	—	$	—	$	6,980	$	(20)

Summary of fair value of debt securities and carrying amount, if different, by contractual maturity

The fair value of debt securities and carrying amount, if different, by contractual maturity were as follows (dollars in thousands). Securities not due at a single maturity date are shown separately.


	March 31, 2022
	Amortized		Estimated
	Cost		Fair Value
Securities available for sale:
Due in one year or less	$	149,523	$	148,892
Due after one to five years		280,000		268,208
Other debt securities		324		643
	$	429,847	$	417,743

Securities held to maturity:
Due in one year or less	$	3,019	$	2,904
Due after one to five years		1,990		1,990
Due after five to ten years		20,000		18,983
	$	25,009	$	23,877