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Note 3 - Cash, Cash Equivalents, and Restricted Cash - Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)
Jun. 30, 2022
Dec. 31, 2021
Cash and cash equivalents $ 40,024,146 $ 72,508,528
Funds held as collateral 21,662,721 9,185,872
Total Cash, Cash Equivalents, and Restricted Cash as Presented in the Consolidated Statement of Cash Flows $ 61,686,867 $ 81,694,400