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Employee Benefit Plans (Summary of Financing Arrangements for Leveraged ESOP Debt) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Issued June, 1991 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount | $ 0 |  |
Employee stock ownership plan (ESOP), interest payments | 0 | $ 1 | $ 1
Issued July, 2009 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount | 0 |  |
Employee stock ownership plan (ESOP), interest payments | 9 | 17 | 26
Issued February, 2016 [Member] |  |  |
Debt Disclosure [Abstract] |  |  |
Employee stock ownership plan (ESOP), debt structure, indirect loan, amount | 0 |  |
Employee stock ownership plan (ESOP), interest payments | $ 229 | $ 190 | $ 242

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- References No definition available. + Details
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- Definition The amount reported as a liability as of the balance sheet date by the entity (the employer) of the loan made by a third-party lender to the employer relating to loans made by the employer to the ESOP. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 25 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109244457&loc=d3e16545-113920 + Details
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- Definition An entity often discloses the amount of interest paid by the ESOP to a lender. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 25 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=109244457&loc=d3e16545-113920 + Details
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