Liquidity and going concern (Details) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Sep. 29, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||
| Operating income (loss) | $ (4,865) | $ (1,778) | ||
| Net cash used in operating activities from continuing operations | (3,338) | (8,591) | ||
| Cash and cash equivalents from continuing operations, end of period (including restricted cash) | 24,503 | $ 15,655 | $ 27,158 | |
| Debt | 1,948 | |||
| Minimum cash requirement | $ 15,000 | |||
| Maximum proceeds from issuance of prospectus equity | $ 100,000 | |||
| Shelf prospectus, effective period | 25 months | |||
| X | ||||||||||
- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activity attributable to continuing operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Debt Instrument, Covenant, Minimum Cash Requirement No definition available.
|
| X | ||||||||||
- Definition Maximum Proceeds from Issuance of Prospectus Equity No definition available.
|
| X | ||||||||||
- Definition Shelf Prospectus, Effective Term No definition available.
|