Note 2 - Cash, Cash Equivalents, and Restricted Cash - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 8,339,918	$ 7,566,299
Restricted cash	174,234	140,507
Total cash, cash equivalents, and restricted cash	$ 8,514,152	$ 7,706,806