Consolidated Statements Of Income And Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements Of Income And Comprehensive Income [Abstract]
Sales	$ 25,838,058	$ 22,713,958	$ 53,428,680	$ 44,259,854
Less: discounts and allowances	(2,760,174)	(2,160,578)	(5,963,765)	(4,309,276)
Net sales	23,077,884	20,553,380	47,464,915	39,950,578
Cost of goods sold	15,058,461	12,522,609	30,607,446	25,429,331
Depreciation expense	421,707	413,109	815,832	812,154
Total cost of goods sold	15,480,168	12,935,718	31,423,278	26,241,485
Gross profit	7,597,716	7,617,662	16,041,637	13,709,093
Selling expenses	2,876,635	2,622,275	5,514,354	5,326,515
General and administrative	2,057,581	1,679,931	3,955,425	3,005,886
Amortization expense	177,842	188,705	355,683	377,409
Total operating expenses	5,112,058	4,490,911	9,825,462	8,709,810
Income from operations	2,485,658	3,126,751	6,216,175	4,999,283
Other income (expense):
Interest and dividend income	30,622	24,478	45,631	36,049
Rental income	3,389	3,018	6,658	6,017
Interest expense	(37,424)	(43,918)	(73,723)	(94,103)
Gain (loss) on sale of investments, net, reclassified from OCI	56,944	4,406	121,280	22,390
Other income	10,229	0	10,229	0
Total other income (expense)	63,760	(12,016)	110,075	(29,647)
Income before provision for income taxes	2,549,418	3,114,735	6,326,250	4,969,636
Provision for income taxes	1,145,478	1,065,607	2,556,671	1,825,520
Net income	1,403,940	2,049,128	3,769,579	3,144,116
Basic and diluted earnings per common share	$ 0.09	$ 0.13	$ 0.23	$ 0.19
Weighted average number of shares outstanding	16,346,017	16,376,601	16,346,017	16,389,674
COMPREHENSIVE INCOME
Net income	1,403,940	2,049,128	3,769,579	3,144,116
Other comprehensive income (loss), net of tax:
Unrealized gains (losses) on investments (net of tax)	(63,811)	(15,593)	(12,277)	33,730
Less reclassification adjustment for (gains) losses included in net income (net of taxes)	(32,174)	(2,489)	(68,523)	(12,650)
Comprehensive income	$ 1,307,955	$ 2,031,046	$ 3,688,779	$ 3,165,196