Note 8 - Accrued Liabilities - Accrued Liabilities (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Payroll expenses and tax payable	$ 187,000	$ 123,000
Commission and bonuses payable and general accrued liabilities	(1,063,000)	(2,670,000)
Total accrued liabilities	$ 1,250,000	$ 2,793,000