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Organization (Details) $ / shares in Units, $ in Thousands											1 Months Ended	3 Months Ended	6 Months Ended		23 Months Ended
Organization (Details) $ / shares in Units, $ in Thousands	Jul. 15, 2026 USD ($)	Jul. 13, 2026 shares	Jan. 27, 2026 USD ($)	Jan. 21, 2026	Dec. 15, 2025 USD ($) $ / shares shares	Nov. 18, 2025 USD ($)	Nov. 12, 2025 USD ($) $ / shares shares	Feb. 26, 2025	Jan. 27, 2025 USD ($)	Jan. 07, 2025 USD ($)	Jul. 31, 2026 USD ($)	Jun. 30, 2026 USD ($) $ / shares shares	Jun. 30, 2026 USD ($) $ / shares shares	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) $ / shares shares	Dec. 31, 2025 USD ($)	Jun. 01, 2025 $ / shares	Jan. 06, 2025 $ / shares	Aug. 21, 2024 USD ($)
Organization
Split ratio								0.0139
Cash and cash equivalents												$ 3,431	$ 3,431		$ 3,431	$ 3,006
Accumulated deficit												$ 483,767	483,767		$ 483,767	$ 470,819
Proceeds from issuance of shares, net													2,551	$ 84
Settlement of convertible notes with common shares													$ 31,489
Convertible Notes \| Exchange Agreement [Member] \| Daewong Warrant
Organization
Exercise price per warrant \| $ / shares					$ 1.09392
Warrants expiration term					5 years
Daewoong \| Exchange Agreement [Member] \| Daewong Warrant
Organization
Exercise price per warrant \| $ / shares												$ 1.09392	$ 1.09392		$ 1.09392
Warrants expiration term												5 years	5 years		5 years
Daewoong \| Convertible Notes Maturing On March 2027
Organization
Principal amount							$ 5,000
Daewoong \| Convertible Notes Maturing On April 2027
Organization
Principal amount							$ 10,000
Daewoong \| Convertible Notes \| Exchange Agreement [Member]
Organization
Share Price \| $ / shares					$ 1		$ 1
Debt instrument ratio				1.3	1.3		1.3
Ownership limitation percentage					49.99%		49.99%
Daewoong \| Convertible Notes \| Exchange Agreement [Member] \| Daewong Warrant
Organization
Debt conversion amount \| shares					8,000,000		8,000,000
Exercise price per warrant \| $ / shares					$ 1.09392		$ 1.09392
Warrants expiration term							5 years
Daewoong \| New Convertible Note, Issued In Lie Of Exchange \| Exchange Agreement [Member]
Organization
Settlement of convertible notes with common shares					$ 1,500		$ 1,500
At the market offering
Organization
Aggregate gross proceeds receivable under the plan																			$ 50,000
Percentage of aggregate gross proceeds from sale of common stock													3.00%
Issuance of shares related to at-the-market offering, net (in shares) \| shares												1,004,153	2,282,929		2,661,939
Proceeds from issuance of at-the-market shares, net															$ 3,000
Net proceeds												$ 900	$ 2,600
Private Placement
Organization
Net proceeds			$ 4,200			$ 1,800	$ 6,000		$ 4,200
2026 Offering
Organization
Net proceeds										$ 18,300
Exercise price per warrant \| $ / shares																	$ 8.06	$ 45
2026 Offering \| Subsequent events
Organization
Issuance of shares related to at-the-market offering, net (in shares) \| shares		17,851,599
Proceeds from issuance of at-the-market shares, net	$ 12,200										$ 13,600