Debt (Tables)

12 Months Ended

Dec. 31, 2025

Debt Disclosure [Abstract]

Schedule of Debt Instrument Redemption

The table below shows the amount of potential redemptions each year until the maturity of the Debentures as of December 31, 2025.


2026			10,266,000
Total		$	10,266,000

Schedule of Convertible Debt

The Fill-Up Amount shall be payable by adding each Holder’s pro rata share of the Fill-Up Amount to its Debenture. Refer to Note 4 (Investments and Fair Value Measurements), for fair value measurements and additional discussion. The activity for the year ended December 31, 2025 was as follows:


		Debentures
Principal balance, January 1, 2025		$	15,491,000
Less:
Conversions			(350,000	)
Redemption payments of principal			(4,875,000	)
Debentures principal balance, December 31, 2025		$	10,266,000

Schedule of Other Income (Expense)

The following is a summary of the charges included within other income (expense), net on the consolidated statement of operations:


		December 31,
		2025				2024
Debt issuance costs on sale of convertible debenture		$	—			$	(1,747,000	)
Other interest expense			(298,000	)			(289,000	)
Changes in estimated fair value on High Trail notes and convertible debentures			3,784,000				(2,084,000	)
Other income (expense)			2,414,000				(716,000	)
Gain on High Trail extinguishment			—				3,965,000
Loss on issuance of convertible debentures and High Trail notes payable			—				(1,890,000	)
Loss on extinguishment of convertible debentures payable			—				(7,341,000	)
Total other income (expense)		$	5,900,000			$	(10,102,000	)