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Note 5 - Credit Facilities and Other Debt - Summary of Credit and Other Debt Facilities (Details)
$ in Thousands
Sep. 30, 2022
USD ($)
Repayments of Principal, 2022 $ 18,905
Repayments of Principal, 2023
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
National Australia Bank [Member]  
Interest Rate 8.31%
Repayments of Principal, 2022 $ 102
Repayments of Principal, 2023 0
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
China Construction Bank [Member]  
Interest Rate 4.15%
Repayments of Principal, 2022 $ 281
Repayments of Principal, 2023 0
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
Industrial Bank [Member]  
Interest Rate 4.00%
Repayments of Principal, 2022 $ 422
Repayments of Principal, 2023 0
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
Investec Bank Ltd. [Member]  
Interest Rate 9.75%
Repayments of Principal, 2022 $ 1,023
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
USA - North Mill Capital [Member]  
Interest Rate 6.46%
Repayments of Principal, 2022 $ 16,777
Repayments of Principal, 2023 0
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0
Resource Plus Acquisition Note [Member]  
Interest Rate 1.85%
Repayments of Principal, 2022 $ 300
Repayments of Principal, 2023
Repayments of Principal, 2024 0
Repayments of Principal, 2025 0
Repayments of Principal, 2026 0
Repayments of Principal, 2027 $ 0