Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
AOCI [Roll Forward]
Beginning balance			$ 423,436,000				$ 423,436,000
Ending balance	$ (17,160,000)						(17,160,000)
Accumulated other comprehensive income
AOCI [Roll Forward]
Beginning balance	(3,000)	$ 73,000	79,000	$ (78,000)	$ (106,000)	$ (65,000)	79,000	$ (65,000)
Other comprehensive income (loss)	39,000	(76,000)	(6,000)	218,000	28,000	(41,000)	(43,000)	205,000
Ending balance	36,000	(3,000)	73,000	140,000	(78,000)	(106,000)	36,000	140,000
Tax on other comprehensive income (loss)	0			0			0	0
Net unrealized investment (losses) gains:
AOCI [Roll Forward]
Beginning balance	(19,000)		69,000	(3,000)		3,000	69,000	3,000
Other comprehensive income (loss)	48,000			218,000			(40,000)	212,000
Ending balance	29,000	(19,000)		215,000	(3,000)		29,000	215,000
Foreign currency translation adjustments:
AOCI [Roll Forward]
Beginning balance	16,000		$ 10,000	(75,000)		$ (68,000)	10,000	(68,000)
Other comprehensive income (loss)	(9,000)			0			(3,000)	(7,000)
Ending balance	$ 7,000	$ 16,000		$ (75,000)	$ (75,000)		$ 7,000	$ (75,000)