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Note 11 - Commitments (Details Textual)		3 Months Ended
	Oct. 31, 2027 USD ($)	Jan. 31, 2026 USD ($) ft²	Oct. 31, 2025 USD ($)
Operating Lease, Right-of-Use Asset		$ 13,432,000	$ 13,848,000
Operating Lease, Liability		18,200,000
Operating Lease, Liability, Current		2,063,000	$ 2,054,000
Finance Lease, Liability, Total		0
Lessee, Operating Lease, Liability, to be Paid		23,500,000
Operating Lease, Monthly Rental Payment		$ 4,745
Subsequent Event [Member]
Operating Lease, Monthly Rental Payment	$ 4,888
Schrofftech Facilities [Member]
Area of Real Estate Property | ft²		7,000
Lessee, Operating Lease, Renewal Term		2 years
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)		1 year
Minimum [Member] | K and K Unlimited [Member]
Lessee, Operating Lease, Monthly Rent		$ 18,540
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)		5 years

X

- Definition

Amount of monthly rent on operating lease of the lessee.

+ References

No definition available.

+ Details

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X

- Definition

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+ References

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- Definition

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+ References

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X

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147479041/842-20-45-1

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
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-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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X

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Section 45
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- Definition

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+ References

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Section 45
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