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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)
 3 Months Ended
Mar. 31, 2025
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue
The following table depicts the disaggregation of revenue by type of products or services and timing of transfer of products or services (in thousands):
Three Months Ended March 31,
20252024
Type of products or services
System sales$12,647 $— 
QCaaS1,533 1,692 
Professional services777 639 
Other revenue*44 134 
Total revenue$15,001 $2,465 
Timing of revenue recognition
Revenue recognized over time$2,337 $2,405 
Revenue recognized at a point in time12,664 60 
Total revenue$15,001 $2,465 
*Other revenue includes support and maintenance and printed circuit board sales.
The following table presents a summary of revenue by geography for the three months ended March 31, 2025 and 2024, based on customer location (in thousands):
Three Months Ended March 31,
20252024
Germany$12,804 $723 
United States497 512 
Japan482 325 
Canada304 195 
Other915 710 
Total revenue$15,001 $2,465 
Schedule of Significant Customers
The tables below present the significant customers on a percentage of total revenue basis for the three months ended March 31, 2025 and 2024.
Three Months Ended March 31,
20252024
Customer A85 %18 %
Schedule of Contract Balances and Revenue Recognized
The following table provides information about account receivable, contract assets and liabilities as of March 31, 2025 and December 31, 2024 (in thousands):
As of March 31, 2025As of As of December 31, 2024
Trade accounts receivable and contract assets, net:
Trade accounts receivable, net of allowance for doubtful accounts and excluding unbilled receivables$437 $867 
Contract asset for unbilled receivables610 553 
Contract acquisition costs365 174 
Total contract assets$1,412 $1,594 
Contract liabilities:
Deferred revenue, current$5,549 $18,686 
Deferred revenue, non-current700 670 
Customer deposit1
56 48 
Total contract liabilities$6,305 $19,404 
1Customer deposit is included in accrued expenses and other current liabilities on the condensed consolidated balance sheets.
Changes in deferred revenue from contracts with customers were as follows (in thousands):
Three Months Ended March 31,
20252024
Balance at beginning of period$19,356 $2,748 
Deferral of revenue1,894 2,113 
Recognition of deferred revenue(15,001)(2,463)
Balance at end of period$6,249 $2,398