Stockholders' Equity - Summary of Stockholders' Equity (Detail) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Class Of Stock Disclosures [Abstract]
Common stock, shares issued, beginning balance	12,307,157	12,380,657	12,451,157
Common stock, shares outstanding, beginning balance	12,307,157	12,380,657	12,451,157
Issued	6,600	5,400	4,500
Acquired		(78,900)	(75,000)
Acquired, Outstanding		(78,900)	(75,000)
Retired, Issued		(78,900)	(75,000)
Retired		78,900	75,000
Common stock, shares issued, ending balance	12,313,757	12,307,157	12,380,657
Common stock, shares outstanding, ending balance	12,313,757	12,307,157	12,380,657