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10. RETIREMENT PLANS (Detail) - Net pension cost of the Company’s plan is as follows: (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2011
Service cost $ 30,840 $ 92,520
Interest 156,331 468,991
Expected return on assets (156,592) (469,774)
Amortization of unrecognized    
net gain or loss 54,762 164,288
Amortization of unrecognized    
prior service cost 18,802 56,404
Net pension cost $ 104,143 $ 312,429