CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (1,291,098)	$ 4,377,654
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	862,683	608,165
Amortization of bond premium	5,068	5,331
Stock-based compensation	1,678,107	1,017,078
Provision for uncollectible accounts	3,690	245,582
Provision for sales returns	723,000	307,000
Provision for inventory reserves	264,000	102,000
Benefit for deferred income taxes	(307,133)	(3,732,590)
Loss on abandonment of assets	98,027	2,016
Changes in assets and liabilities:
Accounts receivable	(2,833,064)	(2,626,176)
Interest receivable	694	11,415
Income tax receivable	(9,880,092)	2,109,079
Prepaid expenses and other assets, net	(260,726)	(316,130)
Accounts payable	1,557,966	1,051,648
Accrued cooperative advertising	(12,000)	(13,000)
Accrued income taxes	11,712	(357,915)
Other accrued liabilities	67,664	(6,487)
Net cash (used in) provided by operating activities	(9,311,502)	2,784,670
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(800,367)	(868,986)
Proceeds from call of long-term investments	500,000	3,250,000
Patent, license rights, and trademark costs	(110,378)	(164,936)
Net cash (used in) provided by investing activities	(410,745)	2,216,078
CASH FLOWS FROM FINANCING ACTIVITIES:
Stock option exercises	420,942	158,393
Tax effect of stock based compensation	13,868	0
Net cash provided by financing activities	434,810	158,393
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(9,287,437)	5,159,141
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	11,860,842	6,701,701
CASH AND CASH EQUIVALENTS, END OF PERIOD	2,573,405	11,860,842
Supplemental disclosure of cash flow information:
Cash paid during the year for interest	2,106	1,260
Cash paid during the year for income taxes	$ 5,570	$ 52,523