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Note 2 - Detail of Certain Balance Sheet Accounts: Schedule of Accounts and Other Receivables (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Details |  |
Accounts Receivable, before Allowance for Credit Loss, Current | $ 4,835 | $ 4,064
Interest Receivable and Other Assets | 43 | 13
Accounts Receivable, Allowance for Credit Loss, Current | (136) | (121)
Accounts and Other Receivables, Net, Current | $ 4,742 | $ 3,956

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