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Revenue from Contracts with Customers (Tables)
9 Months Ended
Sep. 30, 2023
Revenue from Contract with Customer [Abstract]  
Disaggregation of revenue
The following table summarizes net sales from contracts with customers for the three and nine months ended September 30, 2023 and 2022:

Three Months EndedNine Months Ended
September 30,September 30,
2023202220232022
Product, transferred at point in time$3,531 $5,974 $12,578 $18,057 
Product, transferred over time621 651 1,948 1,751 
Service 29,397 28,544 86,883 83,065 
 Total net sales$33,549 $35,169 $101,409 $102,873 
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 September 30, 2023 and December 31, 2022:

Contract Balance TypeBalance Sheet LocationSeptember 30, 2023December 31, 2022
Current portion of deferred costsCurrent contract assets$1,130 $1,243 
Non-current portion of deferred costsNon-current contract assets2,557 3,033 
Current portion of deferred revenuesContract liabilities*1,668 1,743 
Non-current portion of deferred revenuesLong-term contract liabilities3,905 4,315 

*Management notes that the remaining “Contract liabilities” balance not included in the above table (which as of September 30, 2023 and December 31, 2022 is $1,600 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.