Investment Securities - Securities by contractual maturity (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Available for sale, Amortized Cost
Due after one year through five years	$ 49
Due after five years through ten years	38,085
Due after ten years	143,316
Amortized Cost	181,450
Available for sale, Fair Value
Due after one year through five years	48
Due after five years through ten years	37,416
Due after ten years	132,149
Fair Value	169,613
Held to maturity, Amortized Cost
Due after ten years	104,227
Amortized Cost	104,227
Held to maturity, Fair Value
Due after ten years	95,102
Fair Value	$ 95,102

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563