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Note 2 - Detail of Certain Balance Sheet Accounts: Schedule of Accounts and Other Receivables (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Details    
Accounts Receivable, Gross, Current $ 3,713 $ 3,289
Income Taxes Receivable, Current   7
Interest Receivable and Other Assets 14 11
Allowance for Doubtful Accounts Receivable, Current (104) (96)
Accounts and Other Receivables, Net, Current $ 3,623 $ 3,211