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16. BUSINESS SEGMENTS (Details 1) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Business Segments Details 1    
Total segment operating income $ 2,962,712 $ 5,259,649
Corporate costs (357,264) (682,550)
Income from operations 2,605,448 4,577,099
Other income, net 19,837 44,478
Net income before taxes $ 2,625,285 $ 4,621,577