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REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) | 6 Months Ended
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Jun. 30, 2026
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 June 30, |  | Six Months Ended June 30,
| 2026 |  | 2025 |  | 2026 |  | 2025 |  |
Type of products or services |  |  |  |  |  |  |  |  |
System sales | $ | 255 |  |  | $ | 1,025 |  |  | $ | 341 |  |  | $ | 13,672 |  |  |
QCaaS | 1,860 |  |  | 1,241 |  |  | 3,619 |  |  | 2,774 |  |  |
Professional services | 929 |  |  | 785 |  |  | 1,912 |  |  | 1,562 |  |  |
Other revenue* | 32 |  |  | 44 |  |  | 62 |  |  | 88 |  |  |
Total revenue | $ | 3,076 |  |  | $ | 3,095 |  |  | $ | 5,934 |  |  | $ | 18,096 |  |  |
Timing of revenue recognition |  |  |  |  |  |  |  |  |
Revenue recognized over time | $ | 2,797 |  |  | $ | 3,082 |  |  | $ | 5,614 |  |  | $ | 5,419 |  |  |
Revenue recognized at a point in time | 279 |  |  | 13 |  |  | 320 |  |  | 12,677 |  |  |
Total revenue | $ | 3,076 |  |  | $ | 3,095 |  |  | $ | 5,934 |  |  | $ | 18,096 |  |  |
*Other revenue includes support and maintenance and printed circuit board sales. The following table presents a summary of revenue by geography for the three and six months ended June 30, 2026 and 2025, based on customer location (in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2026 |  | 2025 |  | 2026 |  | 2025 |  |
United States | $ | 2,175 |  |  | $ | 710 |  |  | $ | 3,865 |  |  | $ | 1,207 |  |  |
Japan | 137 |  |  | 156 |  |  | 519 |  |  | 638 |  |  |
Germany | 127 |  |  | 1,186 |  |  | 302 |  |  | 13,990 |  |  |
Canada | 130 |  |  | 268 |  |  | 271 |  |  | 572 |  |  |
Other | 507 |  |  | 775 |  |  | 977 |  |  | 1,690 |  |  |
Total revenue | $ | 3,076 |  |  | $ | 3,095 |  |  | $ | 5,934 |  |  | $ | 18,096 |  |  |
Schedule of Significant Customers | The tables below present the significant customers on a percentage of total revenue basis for the three and six months ended June 30, 2026 and 2025.
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2026 |  | 2025 |  | 2026 |  | 2025 |  |
Customer A | 41 | % |  | — | % |  | 35 | % |  | — | % |  |
Customer B | — | % |  | 35 | % |  | — | % |  | 76 | % |  |
Customer C | — | % |  | 11 | % |  | — | % |  | — | % |  |
Schedule of Contract Balances and Revenue Recognized | The following table provides information about accounts receivable, contract assets and liabilities as of June 30, 2026 and December 31, 2025 (in thousands):
| As of June 30, 2026 |  | As of December 31, 2025
Trade accounts receivable and contract assets, net: |  |  |
Trade accounts receivable, net of allowance for credit losses and excluding unbilled receivables | $ | 1,553 |  |  | $ | 1,021 |
Unbilled receivable contract asset | 466 |  |  | 566 |
Contract acquisition costs | 3,325 |  |  | 940 |
Capitalized fulfillment costs | 717 |  |  | — |
Total contract assets | $ | 6,061 |  |  | $ | 2,527 |
Contract liabilities: |  |  |
Deferred revenue, current | $ | 9,234 |  |  | $ | 2,778 |
Deferred revenue, non-current | 1,322 |  |  | 560 |
Total contract liabilities | $ | 10,556 |  |  | $ | 3,338 |
Changes in deferred revenue from contracts with customers were as follows (in thousands):
| Six Months Ended June 30,
| 2026 |  | 2025
Balance at beginning of period | $ | 3,338 |  |  | $ | 19,356 |
Deferral of revenue | 13,103 |  |  | 4,313 |
Recognition of deferred revenue | (5,885) |  |  | (18,109) |
Balance at end of period | $ | 10,556 |  |  | $ | 5,560 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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