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Note 6 - Leases - Lease Costs (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Jan. 31, 2023	Jan. 31, 2023	Jan. 31, 2022
Amortization of ROU assets		$ 53	$ 233	$ 214
Interest on lease liabilities		22	28	69
Operating lease costs		610	1,388	2,570
Short-term lease costs (1)	[1]	24	421	398
Sub-lease income		(20)	(81)	(81)
Total Lease costs		$ 689	$ 1,989	$ 3,170
[1] Includes variable lease costs, which are immaterial

X

- Definition

Amount of interest expense on finance lease liability.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
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X

- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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-Publisher FASB
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X

- Definition

Amount of lease cost recognized by lessee for lease contract.

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-Publisher FASB
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X

- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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X

- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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X

- Definition

Amount of sublease income excluding finance and operating lease expense.

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