Leases - Components of lease expense from continuing operations (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating lease expense:
Operating lease cost	$ 3,608,000
Short-term variable lease cost	374,000
Total lease expense		$ 17,000
Lease expense from discontinued operations		14,000
Finance lease expense:
Finance lease cost - amortization	8,000
Finance lease cost - interest	2,000
Total lease expense	$ 3,992,000
Related party lease
Operating lease expense:
Total lease expense		3,000
Other
Operating lease expense:
Total lease expense		$ 14,000