Summary of Significant Accounting Policies - Concentration of Risk, Allowance (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) customer	Sep. 30, 2024 customer	Sep. 30, 2025 USD ($) item customer	Sep. 30, 2024 item customer	Dec. 31, 2024 USD ($) customer
Concentration Risk [Line Items]
Number of financial institutions maintaining cash and cash equivalents \| item			3
Allowance for expected credit losses
Allowance for expected credit losses \| $	$ 10		$ 10		$ 0
Revenue \| Customer concentration risk \| Customer one
Concentration Risk [Line Items]
Number of major customers \| customer	1	1	1	1
Concentration risk percentage	28.00%	30.00%	27.00%	21.00%
Revenue \| Customer concentration risk \| Customer two
Concentration Risk [Line Items]
Concentration risk percentage				11.00%
Accounts receivable \| Customer concentration risk \| Customer one
Concentration Risk [Line Items]
Number of major customers \| customer			1		1
Concentration risk percentage			51.00%		25.00%
Accounts receivable \| Customer concentration risk \| Customer two
Concentration Risk [Line Items]
Concentration risk percentage					14.00%
Inventory \| Supplier concentration risk \| Supplier one
Concentration Risk [Line Items]
Concentration risk percentage	8.00%	20.00%	12.00%	18.00%
Number of major suppliers \| item			1	1