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Customer Loyalty Program, Rewards Points Expiration Period

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Amount of cash and cash equivalent. 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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of accumulated undistributed earnings (deficit).

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Period Type:

Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 18, 2025 right	Dec. 17, 2025 right
Class of Stock [Line Items]
Accumulated deficit	$ (660,229)	$ (662,158)		$ (662,158)		$ (660,229)
Cash and cash equivalents	$ 8,490	8,345	$ 10,049	8,345	$ 10,049	8,490
Customer loyalty program, rewards points expiration period	13 months
Deferred revenue	$ 5,033	6,906		6,906		5,033
Contract with customer, material rights \| right							3	2
Location, Statement of Financial Position, Activity, Accrual [Axis]: us-gaap:ContractWithCustomerLiabilityCurrent
Class of Stock [Line Items]
Contract with customer, liability, revenue recognized				3,800	$ 4,700
Balance Sheet Location [Axis]: us-gaap:ContractWithCustomerLiabilityCurrent
Class of Stock [Line Items]
Deferred revenue	4,800	4,700		4,700		4,800
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent
Class of Stock [Line Items]
Deferred revenue	0	0		0		0
Green Rewards
Class of Stock [Line Items]
Deferred revenue	$ 200	$ 1,800		$ 1,800		$ 200
Cost of Goods and Service, Product and Service Benchmark \| Supplier Concentration Risk \| Five Suppliers
Class of Stock [Line Items]
Concentration risk, percentage		30.00%	40.00%	30.00%	40.00%
Customer One \| Accounts Receivable \| Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk, percentage				44.00%		82.00%
Customer Two \| Accounts Receivable \| Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk, percentage				27.00%
Customer Three \| Accounts Receivable \| Customer Concentration Risk
Class of Stock [Line Items]
Concentration risk, percentage				20.00%