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Summary of Significant Accounting Policies - Schedule of accrued warranty liability (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance at the beginning of the period $ 2,547 $ 1,735
Acquisition date accrual for World Energy acquisition 0 25
Accrual for warranties issued 116 346
Accrual of additional warranty obligations 0 965
Changes in estimates for preexisting warranties (955) 0
Warranty fulfillment charges (583) (524)
Balance at the end of the period $ 1,125 $ 2,547