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Note 5 - Long-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2022
Notes Tables |
Schedule of Maturities of Long-Term Debt [Table Text Block] |
Year ending December 31, |  | Principal |
2023 |  | $ | 1,344,000 |
2024 |  |  | 2,094,000 |
2025 |  |  | 2,469,000 |
2026 |  |  | 7,594,000 |
2027 |  |  | 164,000 |
|  | $ | 13,665,000 |

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- Definition Tabular disclosure of maturity and sinking fund requirement for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123465755&loc=d3e1835-112601 + Details
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