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16. BUSINESS SEGMENTS (Details 1) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Business Segments Details 1    
Total segment operating income $ 30,354,483 $ 22,039,816
Corporate costs (1,910,990) (1,554,961)
Income from operations 28,443,493 20,484,855
Other income, net 131,548 102,101
Net income before taxes $ 28,575,041 $ 20,586,956