Long-Term Debt - Scheduled Maturities of Advances and Notes Payable (Detail) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
2029	$ 9,642,000
Thereafter	19,750,000
Long-term debt, gross	29,392,000
Less: unamortized debt issuance costs	(231,000)	$ (308,000)
Total	$ 29,161,000	$ 29,104,000