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Deferred Revenue and Remaining Performance Obligations (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Disaggregation of Revenue [Line Items]          
Products and services not yet delivered $ 335   $ 335   $ 451
Revenues recognized included in contract liabilities balances 200 $ 200 300 $ 300  
Revenue expected to be recognized from remaining performance obligations 10,100   $ 10,100    
Contact period     These agreements have between two and four year terms and revenue is recognized as product is shipped, typically on a straight-line basis. The remaining balance relates to executed service contracts that begin as warranty periods expire. These service contracts typically provide for four-year terms and revenue is recognized on a straight-line basis.    
Products and services not yet delivered          
Disaggregation of Revenue [Line Items]          
Products and services not yet delivered $ 335   $ 335   $ 451