Organization and Significant Accounting Policies - Income taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Organization and Significant Accounting Policies
Income tax benefit	$ 45	$ (11)	$ 1	$ (19)	$ (12)	$ 191	$ (4)	$ (9)	$ 16	$ 166
Required holding period									5 years
Deferred tax liability, built in gain									$ 0
Deferred tax asset or liability	$ 0				$ 0				0	0
TRS
Organization and Significant Accounting Policies
Taxable income (loss) attributable to TRS									400	(2,500)
Maximum
Organization and Significant Accounting Policies
Income tax benefit									$ 100	$ 200