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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, 2013
Dec. 31, 2012
Provision For Income Taxes [Abstract]    
Federal income tax expense computed at the statutory rate $ 2,666,223 $ 3,000,457
Federal income tax expense computed at the statutory rate, percentage 34.00% 34.00%
State and local tax expense, net 744,974 838,363
State and local tax expense, percentage 9.50% 9.50%
U.S. domestic manufacturers' deduction & other permanent differences (455,442) (427,525)
U.S. domestic manufacturers' deduction & other permanent differences, percentage (5.80%) (4.90%)
Change in tax estimate (88,880) (206,219)
Change in tax estimate, percentage (1.10%) (2.20%)
Provision for income taxes $ 2,866,875 $ 3,205,076
Provision for income taxes, percentage 36.60% 36.40%