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Note 8 - Segment Information - Net Sales, Income Before Provision for Income Taxes and Other Related Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jul. 31, 2025
Jul. 31, 2024
Jul. 31, 2025
Jul. 31, 2024
Oct. 31, 2024
Net sales $ 19,790 $ 16,836 $ 57,900 $ 46,404  
(Loss) income before provision for income taxes 480 (757) 161 (3,595)  
Depreciation and amortization 617 638 1,848 1,904  
Total assets 73,201 71,860 73,201 71,860 $ 71,046
Expenditures for Segment Assets 108 252 169 564  
(Loss) income before provision for income taxes 480 (757) 161 (3,595)  
Operating Segments [Member] | RF Connector and Cable Assembly [Member]          
Net sales 9,230 9,697 27,311 28,406  
(Loss) income before provision for income taxes (1,424) (715) (4,209) (3,104)  
Depreciation and amortization 518 525 1,554 1,610  
Total assets 45,675 49,355 45,675 49,355  
Expenditures for Segment Assets 60 249 83 544  
(Loss) income before provision for income taxes (1,424) (715) (4,209) (3,104)  
Operating Segments [Member] | Custom Cabling Manufacturing and Assembly [Member]          
Net sales 10,560 7,139 30,589 17,998  
(Loss) income before provision for income taxes 2,144 297 5,265 386  
Depreciation and amortization 99 113 294 294  
Total assets 22,398 18,112 22,398 18,112  
Expenditures for Segment Assets 48 3 86 20  
(Loss) income before provision for income taxes 2,144 297 5,265 386  
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Net sales 0 0 0 0  
(Loss) income before provision for income taxes (240) (339) (894) (877)  
Depreciation and amortization 0 0 0 0  
Total assets 5,128 4,393 5,128 4,393  
Expenditures for Segment Assets 0 0 0 0  
(Loss) income before provision for income taxes $ (240) $ (339) $ (894) $ (877)