Investment Securities-Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Mar. 31, 2019
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost	$ 3,004
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	4,632
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	7,226
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	15,786
Debt Securities, Available-for-sale, Amortized Cost	64,897
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value	2,998
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	4,670
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	7,175
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	15,693
Available-for-sale	$ 65,829	$ 79,845
Debt Securities, Available-for-sale, Maturity, Weighted Average Yield [Abstract]
Available-for-sale, Securities, Debt Maturities, within One Year, Weighted Average Rate	1.61%
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Yield	2.24%
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Yield	2.64%
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Yield	2.41%
Available-for-sale Securities, Debt Maturities, Weighted Average Yield	2.37%
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost	$ 0
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	1,000
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost	0
Held-to-maturity	10,151	11,137
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value	0
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	995
Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	0
Debt Securities, Held-to-maturity, Fair Value	$ 10,564	11,107
Debt Securities, Held-to-maturity, Maturity, Weighted Average Yield [Abstract]
Debt Securities, Held-to-maturity, Maturity, after One Through Five Years, Weighted Average Yield	0.00%
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Yield	5.75%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Weighted Average Yield	0.00%
Held-to-maturity Securities, Debt Maturities, Weighted Average Yield	2.81%
Available-for-sale Securities, Amortized Cost Basis	$ 64,897	80,784
Available-for-sale Securities	$ 65,829	$ 79,845

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-SubTopic 320
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803

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- Definition

Amount of investment in debt security, measured at amortized cost (held-to-maturity), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)(4)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 3
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803

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- References

No definition available.

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- References

No definition available.

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

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