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Note 10 - Related-party Transactions - Transactions Between the Company and Affiliates (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Due to affiliates consists of the following (in thousands): |  | $ 8,689 | $ 7,873
Due to affiliates |  | 3,270 | 3,775
Loans Due from Affiliates [Member] | Local Investors in China [Member] |  |  |
Due from affiliates |  | 0 | 613
Loans Due to Affiliates [Member] | Local Investors in China [Member] |  |  |
Due to affiliates | [1] | 1,784 | 1,746
Loans Due to Affiliates [Member] | Local Investors in Mexico [Member] |  |  |
Due to affiliates | [1] | 623 | 623
Loans Due to Affiliates [Member] | Local Investors in Australia [Member] |  |  |
Due to affiliates | [1] | 597 | 586
Loans Due to Affiliates [Member] | Local Investors In South Africa [Member] |  |  |
Due to affiliates | [1] | 0 | 415
Loans Due to Affiliates [Member] | Local Investors Related to Resource Plus [Member] |  |  |
Due to affiliates | [1] | 266 | 266
Loans Due to Affiliates [Member] | Local Investors in Brazil [Member] |  |  |
Due to affiliates | [1] | 0 | 139
NSRS [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 3,799 | 4,805
National Remodel and Setup Services [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 3,484 | 0
Consulting and Administrative Services (CON) [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 567 | 939
Office lease expenses (Mr. Burdekin) [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 248 | 248
Office And Vehicle Rental MHT [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 115 | 1,470
Consulting and administrative fees (SPARFACTS) [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | 325 | 210
Other [Member] |  |  |
Due to affiliates consists of the following (in thousands): |  | $ 151 | $ 201
[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.

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- 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://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=124433192&loc=d3e56071-112765 Reference 2: 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 3: 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 4: 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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