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Note 3 - Leases - Maturities of Lease Liabilities (Details)
Sep. 30, 2021
USD ($)
2021 (excluding the nine months ended September 30, 2021) $ 154,018
2022 621,802
2023 554,916
2024 518,935
2025 414,138
Thereafter 1,331,219
Total minimum lease payments 3,595,028
Less imputed interest (493,336)
Total lease liabilities $ 3,101,692