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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, 2022 | Dec. 31, 2021
National Store Retail Services (NSRS) (1) |  | $ 9,878 | $ 8,689
Due to affiliates | [1] | 2,964 | 3,270
Loans Due to Affiliates [Member] | Local Investors in China [Member] |  |  |
Due to affiliates | [1] | 1,382 |
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] | 693 | 597
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 to affiliates | [1] |  | 1,784
NSRS [Member] |  |  |
National Store Retail Services (NSRS) (1) | [2] | 0 | 3,799
National Remodel and Setup Services [Member] |  |  |
National Store Retail Services (NSRS) (1) | [2] | 8,565 | 3,484
Consulting and Administrative Services (CON) [Member] |  |  |
National Store Retail Services (NSRS) (1) | [3] | 477 | 567
Office lease expenses (Mr. Burdekin) [Member] |  |  |
National Store Retail Services (NSRS) (1) | [3] | 248 | 248
Office And Vehicle Rental MHT [Member] |  |  |
National Store Retail Services (NSRS) (1) | [3] | 0 | 115
Consulting and administrative fees (SPARFACTS) [Member] |  |  |
National Store Retail Services (NSRS) (1) | [3] | 431 | 325
Other [Member] |  |  |
National Store Retail Services (NSRS) (1) | [3] | $ 157 | $ 151
[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.
[2] | 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.
[3] | These expenses are reflected in "Selling, general, and administrative expense" expense in the consolidated statements of operations and comprehensive (loss) income

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