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Note 3 - Debt - Summary of Credit and Other Debt Facilities (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Interest Rate |  |
Balance | $ 18,585 | $ 17,980
Balance outstanding | $ 1,204 | $ 1,376
Investec Bank Ltd. [Member] |  |
Interest Rate | 11.25% | 10.50%
Balance | $ 2,224 | $ 1,700
Balance outstanding | $ 1,204 | $ 1,376
National Australia Bank [Member] |  |
Interest Rate | 11.10% | 10.60%
Balance | $ 123 | $ 156
Construction Bank [Member] |  |
Interest Rate | 4.15% | 4.15%
Balance | $ 290 | $ 290
Industrial Bank [Member] |  |
Interest Rate | 4.00% | 4.00%
Balance | $ 435 | $ 435
North Mill Capital [Member] |  |
Interest Rate | 9.90% | 5.25%
Balance | $ 14,813 | $ 14,399
Resouces Plus Seller Notes [Member] |  |
Interest Rate | 1.85% | 1.85%
Balance | $ 700 | $ 1,000

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