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Note 7 - Accrued Liabilities - Accrued Liabilities (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Payroll expenses and taxes payable $ 196,000 $ 221,000
Commissions and bonuses payable and general accrued liabilities 498,000 726,000
Total accrued liabilities $ 694,000 $ 947,000