10. RETIREMENT PLANS (Detail) - Net pension cost (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Service cost	$ 123,360	$ 79,909
Interest cost	625,322	646,708
Expected return on assets	(626,365)	(532,218)
Amortization of unrecognized net loss	219,050	287,413
Amortization of unrecognized prior service cost	75,205	72,392
Net periodic pension cost	$ 416,572	$ 554,204