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Note 3 - Acquisition of Canada's Best Holdings (Details Textual) - USD ($)
3 Months Ended
Mar. 11, 2025
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2021
Business Combination, Acquisition-Related Cost, Expense   $ 220,000 $ 48,000  
Line of Credit Facility, Maximum Borrowing Capacity       $ 100,000,000
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity   125,000,000   $ 75,000,000
CBH [Member]        
Business Combination, Consideration Transferred, Before Adjustment and Earnout Payment $ 25,900,000      
Business Combination, Consideration Transferred 29,100,000      
Business Combination, Contingent Consideration, Liability 3,300,000 3,400,000    
Business Combination, Acquisition-Related Cost, Expense 1,000,000   100,000  
Payments to Acquire Businesses, Gross 25,900,000      
Business Combination, Acquired Receivable, Purchased without Credit Deterioration, Gross Contractual Amount 4,300,000      
Business Combination, Acquiree's Revenue since Acquisition Date, Actual   8,900,000    
Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual   1,300,000    
Business Combination, Pro Forma Information, Pro Forma Income (Loss) from Continuing Operations, after Tax   $ 10,794 $ 10,800,000  
CBH [Member] | Maximum [Member]        
Business Combination, Consideration Transferred, Working Capital Adjustment and Earnout Payment $ 7,000,000