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INCOME TAXES (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Current:    
Federal $ 69 $ (36)
State and local 80 112
Total Current 149 76
Deferred:    
Federal 2,219 (1,597)
State and local 275 (201)
Deferred Income Tax Expense (Benefit), Total 2,494 (1,798)
Total provision (benefit) for income taxes $ 2,643 $ (1,722)