Note 3 - Cash, Cash Equivalents, and Restricted Cash - Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 28,624,064	$ 28,289,712
Funds held as collateral assets	13,910,338	9,973,991
Cash held by BOAM funds and other	4,180,225	2,933,723
Total Cash, Cash Equivalents, and Restricted Cash as Presented in the Consolidated Statements of Cash Flows	$ 46,714,627	$ 41,197,426	$ 39,413,204