Annual report [Section 13 and 15(d), not S-K Item 405]

Note 14 - Commitments and Contingencies (Details Textual)

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Note 14 - Commitments and Contingencies (Details Textual) - Johnson Controls Fire Protections [Member] - USD ($)
May 29, 2025
May 12, 2025
Dec. 31, 2025
Loss Contingency Accrual     $ 0
Litigation Related Costs [Member]      
Loss Contingency, Damages Sought, Value $ 300,000 $ 300,000  
Attorney's Fees and Costs [Member]      
Loss Contingency, Damages Sought, Value 3,500,000    
Attorney's Fees [Member]      
Loss Contingency, Damages Sought, Value $ 3,200,000