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v3.21.2

Subsequent Events (Detail Textuals) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 27, 2020 | Jun. 17, 2021 | Mar. 31, 2021 | Mar. 31, 2020
Debt Instrument [Line Items] |  |  |  |
Number of shares repurchased |  |  | 112,000 | 119,000
Aggregate cost of shares repurchased |  |  | $ 905,000 | $ 979,000
Subsequent Event |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Number of shares repurchased |  | 40,110 |  |
Aggregate cost of shares repurchased |  | $ 433,000 |  |
Shares repurchased, average cost per share |  | $ 10.63 |  |
Paycheck Protection Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from Loans | $ 3,243,900 |  |  |
Loan interest rate | 1.00% |  |  |
Loan maturity date | May 22, 2022 |  |  |
Prepayment penalties upon early repayment | $ 0 |  |  |
Paycheck Protection Program | Fifth Third Bank |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Proceeds from Loans | $ 3,243,900 |  |  |
Loan interest rate | 1.00% |  |  |
Loan maturity date | May 22, 2022 |  |  |
Prepayment penalties upon early repayment | $ 0 |  |  |

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