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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Schedule of Allowance For Doubtful Accounts
The allowance for credit losses for the year ended December 31 is comprised of the following (in thousands):

20212020
Beginning balance$445 — 
Provisions123 684 
Write-offs(428)(239)
$140 $445 
Schedule of Warranty Reserve
Product warranty reserve activity for the years ended December 31 is as follows (in thousands):

202120202019
Beginning balance$232 $403 $215 
Provisions(22)13 411 
Warranty cost incurred(71)(184)(223)
$139 $232 $403