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Note 3 - Long-Term Debt Financing - Long-term Debt Maturities (Details)
Mar. 31, 2022
USD ($)
2022 (excluding the three-months ended March 31, 2022) $ 1,103,000
2023 1,719,000
2024 2,094,000
2025 2,469,000
2026 8,094,000
Thereafter 164,000
Long-Term Debt, Gross $ 15,643,000