Consolidated Statements Of Income And Comprehensive Income (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Income And Comprehensive Income [Abstract]
Sales	$ 21,545,896	$ 19,047,266
Less: discounts and allowances	(2,148,699)	(1,743,363)
Net sales	19,397,197	17,303,903
Cost of goods sold	12,238,341	9,345,717
Depreciation expense	399,045	376,513
Total cost of goods sold	12,637,386	9,722,230
Gross profit	6,759,811	7,581,673
Selling expenses	2,721,973	2,282,470
General and administrative	1,976,603	1,837,622
Amortization expense	188,705	195,959
Total operating expenses	4,887,281	4,316,051
Income from operations	1,872,530	3,265,622
Other income (expense):
Interest and dividend income	11,573	17,593
Rental income	3,000
Interest expense	(50,186)	(62,130)
Gain (loss) on sale of investments, net	17,985	(2,597)
Total other income (expense)	(17,628)	(47,134)
Income before provision for income taxes	1,854,902	3,218,488
Provision for income taxes	759,913	1,292,717
Net income	1,094,989	1,925,771
Basic and diluted earnings per common share	$ 0.07	$ 0.12
Weighted average number of shares outstanding	16,397,998	16,489,954
COMPREHENSIVE INCOME
Net income	1,094,989	1,925,771
Other comprehensive income (loss), net of tax:
Unrealized gains on investments (net of tax)	29,000	15,451
Less reclassification adjustment for (gains) losses included in net income (net of taxes)	10,162	1,467
Comprehensive income	$ 1,134,151	$ 1,942,689