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Provision For Income Taxes (Schedule Of Provision For Income Taxes And Income Tax Computed At The Statutory Rate) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Provision For Income Taxes [Abstract]    
Federal income tax expense computed at the statutory rate $ 3,000,457 $ 1,643,308
Federal income tax expense computed at the statutory rate, percentage 34.00% 34.00%
State and local tax expense, net 838,363 561,187
State and local tax expense, percentage 9.50% 11.60%
U.S. domestic manufacturers' deduction & other permanent differences (427,525) (122,837)
U.S. domestic manufacturers' deduction & other permanent differences, percentage (4.90%) (2.50%)
Change in tax estimate (206,219) (103,821)
Change in tax estimate, percentage (2.20%) (2.20%)
Provision for income taxes, percentage 36.40% 40.90%
Provision for income taxes $ 3,205,076 $ 1,977,837