Note 4 - Credit Facilities and Other Debt - Summary of Credit and Other Debt Facilities (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Repayments of Principal, 2021	$ 12,940
Repayments of Principal, 2022	300
Repayments of Principal, 2023	700
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
National Australia Bank [Member]
Interest Rate	6.56%
Repayments of Principal, 2021	$ 9
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
Industrial Bank [Member]
Interest Rate	6.00%
Repayments of Principal, 2021	$ 460
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
CCB Bank [Member]
Interest Rate	6.00%
Repayments of Principal, 2021	$ 153
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
Ve Por Mas [Member]
Interest Rate	7.30%
Repayments of Principal, 2021
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
Bancomer Bank [Member]
Interest Rate	9.60%
Repayments of Principal, 2021	$ 244
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
North Mill, LLC [Member]
Interest Rate	6.75%
Repayments of Principal, 2021	$ 11,774
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
Fifth Third Bank [Member]
Interest Rate	3.60%
Repayments of Principal, 2021
Repayments of Principal, 2022
Repayments of Principal, 2023
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026
Resource Plus Acquisition Note [Member]
Interest Rate	1.85%
Repayments of Principal, 2021	$ 300
Repayments of Principal, 2022	300
Repayments of Principal, 2023	700
Repayments of Principal, 2024
Repayments of Principal, 2025
Repayments of Principal, 2026

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 470
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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