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Note 1 - Organization and Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Cash $ 12,495 $ 12,560
Cash equivalents 5,083 10,768
Total cash and cash equivalents shown in the Consolidated Statements of Cash Flows $ 17,578 $ 23,328