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Note 2 - Detail of Certain Balance Sheet Accounts: Schedule of Accounts and Other Receivables (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Details    
Accounts Receivable, before Allowance for Credit Loss, Current $ 5,720 $ 5,287
Interest Receivable and Other Assets 51 39
Accounts Receivable, Allowance for Credit Loss, Current (182) (156)
Accounts and Other Receivables, Net, Current $ 5,589 $ 5,170