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Note 5 - Related-party Transactions - Transactions Between the Company and Affiliates (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Services provided by affiliates |  | $ 2,234 | $ 1,988 |
Due to affiliates |  | 4,569 |  | $ 3,775
NSRS [Member] |  |  |  |
Services provided by affiliates |  | 1,840 | 1,342 |
Office lease expenses (Mr. Burdekin) [Member] |  |  |  |
Services provided by affiliates |  | 6 | 6 |
Office Lease Expenses (RJ Holdings) [Member] |  |  |  |
Services provided by affiliates |  | 228 | 173 |
Office And Vehicle Rental MPT [Member] |  |  |  |
Services provided by affiliates |  | 17 | 16 |
Vehicle Rental MCPT [Member] |  |  |  |
Services provided by affiliates |  | 12 | 299 |
Office And Vehicle Rental MHT [Member] |  |  |  |
Services provided by affiliates |  | 29 | 73 |
Consulting and Administrative Services (CON) [Member] |  |  |  |
Services provided by affiliates |  |  | 12 |
Legal Services (KMSA) [Member] |  |  |  |
Services provided by affiliates |  | 14 | 23 |
Warehouse Rental (JFMD) [Member] |  |  |  |
Services provided by affiliates |  | 12 | 13 |
Consulting and administrative fees (SPARFACTS) [Member] |  |  |  |
Services provided by affiliates |  | 76 | $ 31 |
Loans Due to Affiliates [Member] | Local Investors in Australia [Member] |  |  |  |
Due to affiliates | [1] | 578 |  | 586
Loans Due to Affiliates [Member] | Local Investors in Mexico [Member] |  |  |  |
Due to affiliates | [1] | 623 |  | 623
Loans Due to Affiliates [Member] | Local Investors in Brazil [Member] |  |  |  |
Due to affiliates | [1] | 139 |  | 139
Loans Due to Affiliates [Member] | Local Investors In South Africa [Member] |  |  |  |
Due to affiliates | [1] | 1,223 |  | 415
Loans Due to Affiliates [Member] | Local Investors Related to Resource Plus [Member] |  |  |  |
Due to affiliates | [1] | 266 |  | 266
Loans Due from Affiliates [Member] | Local Investors in China [Member] |  |  |  |
Due from affiliates |  | $ 1,740 |  | $ 1,746
[1] | Represent loans from the local investors into the Company's subsidiaries (representing their proportionate share of working capital loans). The loans have no payment terms and are due on demand and as such have been classified as current liabilities in the Company's consolidated financial statements.

X
- Definition Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120604989&loc=d3e56071-112765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Definition Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(k)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(12)(b)(3)) -URI http://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996 + Details
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