v3.26.1
Note 10 - Line of Credit (Details Textual)
Dec. 19, 2025
USD ($)
Nov. 08, 2025
Nov. 07, 2025
USD ($)
Oct. 16, 2024
USD ($)
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Apr. 30, 2025
USD ($)
Line of Credit Facility, Maximum Borrowing Capacity             $ 20,000,000
Line of Credit, Current         $ 12,688,000 $ 10,313,000  
Revolving Credit Note [Member]              
Debt Instrument, Interest Rate, Effective Percentage         6.79% 6.99%  
Line of Credit Facility, Minimum Undrawn Capacity         $ 317,000    
Revolving Credit Facility [Member] | Revolving Credit Note [Member]              
Line of Credit, Current         12,700,000 $ 10,300,000  
Revolving Credit Facility [Member] | United States Base Rate Loans [Member]              
Line of Credit, Current         9,600,000 7,900,000  
Berkshire Bank [member] | Revolving Credit Facility [Member] | Revolving Credit Note [Member]              
Debt Instrument, Maturity Date Jun. 19, 2026            
Line of Credit Facility, Maximum Borrowing Capacity $ 11,500,000            
Line of Credit Facility, Borrowing Limit Rate Based on Eligible Accounts Receivable 0.85            
Line of Credit Facility, Borrowing Limit Rate Based on Finished Goods Inventory       54      
Line of Credit Facility, Current Borrowing Capacity       $ 8,000,000      
Debt Instrument, Basis Spread on Variable Rate 3.00%            
Line of Credit, Current         9,600,000 $ 7,900,000  
Debt Instrument, Covenant, Minimum Cash Flow Coverage Ratio           1.15  
Debt Instrument, Covenant, Minimum Tangible Net Worth           $ 1,250,000  
Toronto-Dominion Bank [Member] | Revolving Credit Facility [Member] | Revolving Credit Note [Member]              
Line of Credit Facility, Maximum Borrowing Capacity     $ 5,000,000        
Line of Credit Facility, Borrowing Limit Rate Based on Eligible Accounts Receivable     80        
Line of Credit Facility, Borrowing Limit Rate Based on Finished Goods Inventory     50        
Debt Instrument, Basis Spread on Variable Rate   0.50% 0.50%        
Line of Credit, Current         $ 3,100,000 $ 2,400,000  
Debt Instrument, Covenant, Minimum Cash Flow Coverage Ratio         1.25