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Provision For Income Taxes (Details 1) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Tax Disclosure [Abstract]        
Federal income tax expense computed at the statutory rate     $ 1,457,752 $ 2,964,268
Federal income tax expense computed at the statutory rate, percentage     34.00% 34.00%
State and local tax expense, net     268,827 828,251
State and local tax expense, net, percentage     6.30% 9.50%
U.S. domestic manufacturers' deduction & other permanent differences     (311,715) (444,711)
U.S. domestic manufacturers' deduction & other permanent differences, percentage     (7.30%) (5.10%)
Change in tax estimate     92,370 (88,880)
Change in tax estimate, percentage     2.20% (1.00%)
Provision for income taxes $ 789,005 $ 702,257 $ 1,507,234 $ 3,258,928
Provision for income taxes, percentage     35.20% 37.40%