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Note 1 - Organization and Liquidity (Details Textual) - USD ($)
3 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Working Capital (Deficit) $ 13,700,000  
Cash 815,000  
Unbilled Contracts Receivable 22,600,000  
Payments of Ordinary Dividends, Preferred Stock and Preference Stock $ (0) $ 947,000