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Contract balances for the years ended December 31, 2023, 2022, and 2021 are as follows: (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounting Policies [Abstract]      
Accounts receivable, net $ 3,467 $ 4,734 $ 3,937
Contract assets     179
Contract liabilities $ 2,353 $ 2,188 $ 1,444