CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (185,312)	$ 172,726
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	384,749	265,607
Amortization of bond premium	2,706	2,652
Stock-based compensation	743,633	569,230
Provision for uncollectible accounts	(60,805)	245,460
Provision for sales returns	(135,000)	170,000
Provision for inventory reserves	75,000	26,000
Benefit for deferred income taxes	(150,832)	0
Loss on abandonment of assets	95,052	0
Changes in assets and liabilities:
Accounts receivable	476,974	215,840
Interest receivable	(891)	10,220
Inventory	(3,664,506)	734,983
Prepaid expenses and other assets, net	(392,819)	(174,519)
Accounts payable	430,126	(316,446)
Accrued cooperative advertising	108,000	100,000
Accrued income taxes	5,810	(358,493)
Other accrued liabilities	(40,620)	(247,293)
Net cash (used in) provided by operating activities	(2,308,735)	1,415,967
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(202,610)	(485,878)
Proceeds from call of long-term investments	0	2,500,000
Patent, license rights, and trademark costs	(91,678)	(40,498)
Net cash (used in) provided by investing activities	(294,288)	1,973,624
CASH FLOWS FROM FINANCING ACTIVITIES:
Stock option exercises	13,400	119,914
Net cash provided by financing activities	13,400	119,914
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(2,589,623)	3,509,505
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	11,860,842	6,701,701
CASH AND CASH EQUIVALENTS, END OF PERIOD	9,271,219	10,211,206
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	974	604
Cash paid during the period for income taxes	$ 7,050	$ 11,800