Note 12 - Commitments (Details Textual)	Jan. 31, 2023 USD ($) ft²	Oct. 31, 2022 USD ($)
Lessor, Operating Lease, Renewal Term	5 years
Operating Lease, Right-of-Use Asset	$ 12,708,000	$ 13,480,000
Operating Lease, Liability, Total	16,594,000
Operating Lease, Liability, Current	1,728,000	$ 1,887,000
Finance Lease, Liability, Total	$ 0
Schrofftech Facilities [Member]
Lessor, Operating Lease, Renewal Term	2 years
Lessee, Operating Lease, Monthly Rent	$ 6,720
Number of Buildings	2
Area of Real Estate Property | ft²	10,700
Number of Leases	2
Other Current Liabilities [Member]
Operating Lease, Liability, Current	$ 1,728,000
K and K Unlimited [Member]
Lessee, Operating Lease, Monthly Rent	$ 16,000
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	1 year
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	3 years