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Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of cash, cash equivalents, and restricted cash      
Cash and cash equivalents $ 14,852,000 $ 10,288,000  
Restricted cash 5,960,000 1,200,000  
Cash, cash equivalents and restricted cash $ 20,812,000 $ 11,488,000 $ 10,849,000