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Income Taxes (Details) - Schedule of Effective Income Tax Rate Reconciliation - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Schedule of Effective Income Tax Rate Reconciliation [Abstract]    
Statutory rate $ (1,819) $ 100
State and local tax (163) 69
Valuation allowance on deferred tax assets 1,050 961
Nondeductible expenses (11) 2
Uncertain tax positions 1 (898)
Nontaxable life insurance cash value increase (47) (63)
Taxable life insurance gain 783 128
Stock Compensation 86 242
Tax credits (219) (434)
Change in tax rate 209 (323)
Other items 131 12
Total (benefit) provision $ 1 $ (204)