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Note 6 - Balance Sheet - Continuing Operations - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands | Oct. 31, 2022 | Jan. 31, 2022
--- | --- | ---
Accounts receivable | $ 4,400 | $ 9,260
Less allowance for doubtful accounts | (504) | (484)
Accounts receivable net of allowance for doubtful accounts | 3,896 | 8,776
Other Current Assets [Member] |  |
Accounts receivable | 4,400 | 8,610
Less allowance for doubtful accounts | (504) | (484)
Accounts receivable net of allowance for doubtful accounts | 3,896 | 8,126
Other Noncurrent Assets [Member] |  |
Accounts receivable | 0 | 650
Less allowance for doubtful accounts | 0 | 0
Accounts receivable net of allowance for doubtful accounts | $ 0 | $ 650

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