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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2020 | Jan. 31, 2020
Statement of Financial Position [Abstract] |  |
Accounts receivable from related parties | $ 37,000 | $ 375,000
Allowance for doubtful accounts receivable | $ 22,000 | $ 15,000
Shares of beneficial interest, without par value |  |
Shares of beneficial interest, authorized shares | Unlimited | Unlimited
Shares of beneficial interest, shares issued | 18,626,215 | 18,608,215
Shares of beneficial interest, shares outstanding | 9,057,730 | 9,273,299
Treasury stock, shares held | 9,568,485 | 9,334,916

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