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Fair Value of Assets and Liabilities - Other investments (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Fair Value of Assets and Liabilities
Fair value of investment in Other investments companies	$ 2,020,000.00		$ 2,020,000.00		$ 2,160,000
Unrealized gains or losses	(9,000)	$ (96,000)	136,000	$ (77,000)
Other income			3,630,000
Other income net of tax					$ 3,650,000
Unrealized gains from change in fair value of investments	$ 120,000		$ (20,000)

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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