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Note 2 - Detail of Certain Balance Sheet Accounts: Schedule of Accounts and Other Receivables (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Details |  |
Accounts Receivable, before Allowance for Credit Loss, Current | $ 5,287 | $ 4,224
Interest Receivable and Other Assets | 39 | 14
Accounts Receivable, Allowance for Credit Loss, Current | (156) | (134)
Accounts and Other Receivables, Net, Current | $ 5,170 | $ 4,104

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