Annual report pursuant to Section 13 and 15(d)

Note 11 - Acquisition of Nestor Cables (Details Textual)

v3.22.2.2
Note 11 - Acquisition of Nestor Cables (Details Textual)
€ in Millions
12 Months Ended
Jul. 26, 2022
USD ($)
Jul. 26, 2022
EUR (€)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Goodwill, Ending Balance     $ 6,402,000 $ 4,709,000
Nestor Cables [Member]        
Business Acquisition, Percentage of Voting Interests Acquired 100.00%      
Business Combination, Consideration Transferred, Total $ 8,000,000.0 € 7.9    
Business Combination, Consideration Transferred, Liabilities Incurred 7,800,000 € 7.6    
Goodwill, Ending Balance $ 1,762,000      
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life (Year) 12 years 9 months 10 days 12 years 9 months 10 days    
Nestor Cables [Member] | Selling, General and Administrative Expenses [Member]        
Business Combination, Acquisition Related Costs     $ 1,600,000  
Nestor Cables [Member] | Approximate [Member]        
Goodwill, Ending Balance $ 1,700,000      
Nestor Cables [Member] | Revolving Credit Facility [Member]        
Proceeds from Lines of Credit, Total $ 16,700,000