Note 8 - Stock Compensation Plans - Schedule of Restricted Stock Units (Details) - Restricted Stock Units (RSUs) [Member] - shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Total authorized RSUs in Plan approved by shareholders (in shares)	4,850,000
Stock issued out of the Plan from vested grants (in shares)	(3,540,178)
Non-vested grants (in shares)	(858,363)	(1,056,937)	(183,000)
RSUs available for future issuance (in shares)	451,459

Aggregate number of common shares reserved for future issuance.

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