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Stock-based Compensation Expense (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 28, 2021
Feb. 28, 2021
Feb. 28, 2021
Stock-based Compensation Expense (Details) [Line Items]      
Shares granted (in Shares) 108,333    
Stock option vested (in Shares) 69,167    
Shars granted $ 826,000    
Option granted based on the closing price $ 262,000    
Stock based compensation expense   $ 59,000 $ 59,000
Compensation expense, Description     there is approximately $1,029,000 of unearned compensation expense that will be expensed through February 2024; 142,666 stock awards expected to vest and zero vested stock awards.
Minimum [Member]      
Stock-based Compensation Expense (Details) [Line Items]      
Estimated forfeiture rates 40.00%    
Maximum [Member]      
Stock-based Compensation Expense (Details) [Line Items]      
Estimated forfeiture rates 60.00%