Note 12 - Commitments and Contingencies (Details Textual) - USD ($)			3 Months Ended		6 Months Ended
	May 01, 2022	Nov. 01, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Operating Lease, Expense			$ 116,000	$ 139,000	$ 255,000	$ 149,000
Operating Lease, Liability, Total			540,000		540,000
Operating Lease, Right-of-Use Asset			540,000		540,000		$ 755,000
Williamsville Lease [Member]
Lease, Monthly Rent	$ 1,650
Corporate Headquarters Lease [Member]
Lease, Monthly Rent		$ 22,940
Lessee, Operating Lease, Term of Contract (Year)		5 years
Operating Lease, Expense					134,452	$ 139,020
Operating Lease, Liability, Total			540,000		540,000
Operating Lease, Right-of-Use Asset			$ 540,000		$ 540,000