BENEFIT PLANS - Components of net periodic benefit cost and other amounts recognized in other comprehensive income (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Service cost	$ 136,145	$ 194,326
Interest cost	69,830	53,705
Amortization of unrecognized past service liability	130,821	128,126
Net periodic benefit cost	336,796	376,157
Net loss (gain)	(154,613)	(7,680)
Amortization of prior service cost	(130,821)	(128,126)
Total recognized in other comprehensive income	(285,434)	(135,806)
Total recognized in net periodic benefit cost and other comprehensive loss	$ 51,362	$ 240,351