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Consolidated Statements of Income(Unaudited) (USD $)
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
NET SALES $ 18,177,078 $ 15,879,040
COST OF SALES 6,811,445 6,354,192
Gross profit 11,365,633 9,524,848
OPERATING EXPENSES 8,811,458 7,612,360
INCOME FROM OPERATIONS 2,554,175 1,912,488
OTHER (INCOME) EXPENSE:    
Interest expense 58,392 62,003
Other, net (19,814) 48,832
Total other (income) expense 38,578 110,835
INCOME BEFORE INCOME TAXES 2,515,597 1,801,653
PROVISION FOR INCOME TAXES 941,492 651,077
NET INCOME $ 1,574,105 $ 1,150,576
BASIC (in Dollars per share) $ 0.15 $ 0.11
DILUTED (in Dollars per share) $ 0.15 $ 0.11
BASIC (in Shares) 10,156,442 10,156,442
DILUTED (in Shares) 10,172,950 10,169,701