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v3.25.1

Summary of Business and Significant Accounting Policies (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 25, 2025 USD ($) | Mar. 31, 2025 USD ($) Segment | Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |
Cash, cash equalents, restricted cash, and short-term investments |  | $ 46,900 |  | $ 35,300
Working capital deficit |  | 32,500 |  |
Accumulated deficit |  | (811,149) |  | (806,899)
Net losses excluding effect of gain on sale of businesses |  | 20,000 | $ 21,000 |
Net (loss) income |  | $ (4,250) | $ 50,599 |
Number of operating segments | Segment |  | 1 |  |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  | srt:ChiefExecutiveOfficerMember |  |
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description |  | The chief operating decision maker assesses performance for the single operating segment and decides how to allocate resources based on net income that also is reported on the income statement as consolidated net (loss) income. |  |
Percentage of cash and cash equivalents held |  | 81.00% |  |
Allowance for credit losses |  | $ 1,471 |  | $ 1,343
Accounts Receivable | Customer Concentration Risk | Customer One |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 10.00% |  | 10.00%
Revenue | Customer Concentration Risk | U.S. Federal Government |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 18.00% | 17.00% |
Assets | Geographic Concentration Risk | Single Customer | United States |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 97.00% |  | 85.00%
Accounts Payable | Supplier Concentration Risk | Two Vendors |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  |  |  | 10.00%
Accounts Payable | Supplier Concentration Risk | One Vendor |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 10.00% |  |
Purchases | Supplier Concentration Risk | One Vendor |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 10.00% | 10.00% |
Legacy Notes |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |
Carrying value of convertible notes | $ 10,961 |  |  |
Extended maturity date | Apr. 15, 2026 |  |  |

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