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Paycheck Protection Program Loan - Additional information (Detail) - Paycheck Protection Program Loan [Member] - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2021 | May 06, 2020
Percent of loan to be forgiven | 40.00% |
Green wood Credit Union [Member] |  |
Debt instrument face amount |  | $ 4,400,000
Loan, payment terms | The PPP Loan, which will mature on May 6, 2022, is unsecured and bears interest at a rate of 1.0% per annum, accruing from the loan date, and is payable monthly. |
Loan, maturity date | May 06, 2022 |
Loan, interest rate | 1.00% |
Loan, payments due | $ 0 |
Green wood Credit Union [Member] | Other Expense [Member] |  |
Loan, interest accrued | $ 33,000 |

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