Annual report pursuant to Section 13 and 15(d)

Summary of Opening and Closing Balances of Contract Liabilities (Detail)

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Summary of Opening and Closing Balances of Contract Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Revenue Recognition [Abstract]    
Undelivered elements (training, installation, product and support services) $ 447 $ 835
Extended warranty contracts 2,082 1,753
Total deferred revenue 2,529 2,588
Less: long-term portion of deferred revenue (418) (329)
Deferred revenue – current $ 2,111 $ 2,259