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Revenue from Contracts with Customers (Tables)
3 Months Ended
Mar. 31, 2023
Revenue from Contract with Customer [Abstract]  
Disaggregation of revenue
The following table summarizes net sales from contracts with customers for the three months ended March 31, 2023 and 2022:

Three Months Ended
March 31,
20232022
Product, transferred at point in time$4,503 $6,107 
Product, transferred over time446 456 
Service 28,740 26,588 
 Total net sales$33,689 $33,151 
Schedule of customer contract balances
The following table provides the balance sheet location and amounts of contract assets, or unbilled accounts receivable, and contract liabilities, or deferred revenue, from contracts with customers as of March 31, 2023 and December 31, 2022:

Contract Balance TypeBalance Sheet LocationMarch 31, 2023December 31, 2022
Current portion of deferred costsCurrent contract assets$1,273 $1,243 
Non-current portion of deferred costsNon-current contract assets3,079 3,033 
Current portion of deferred revenuesContract liabilities*1,844 1,743 
Non-current portion of deferred revenuesLong-term contract liabilities4,667 4,315 

*Management notes that the remaining “Contract liabilities” balance not included in the above table (which as of March 31, 2023 and December 31, 2022 is $1,840 and $1,365, respectively) relates to deferred income unaffiliated with the Company’s primary revenue streams, the majority of which relates to our content subscription business. These values are therefore excluded from the contract assets and contract liabilities from contracts with customers.