CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (7,693,068)	$ (10,322,937)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	663,450	861,658
Stock-based compensation	1,276,285	1,289,904
Provision for uncollectible accounts	29,000	897,878
Provision for sales returns	(505,000)	(853,000)
Provision for inventory reserves	213,000	281,000
Provision for deferred income taxes	0	4,039,723
Loss on abandonment of assets	0	2,201
Gain on sale of long-term assets	(125)	0
Changes in assets and liabilities:
Accounts receivable	3,126,654	4,693,941
Inventory	4,732,476	982,806
Prepaid expenses and other assets, net	(411,879)	(298,681)
Accounts payable	10,869	(1,066,740)
Accrued cooperative advertising	(192,000)	4,000
Accrued income taxes	9,579	9,147
Other accrued liabilities	413,931	629,999
Net cash provided by operating activities	1,673,172	1,150,899
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(205,451)	(1,007,506)
Patent, license rights, and trademark costs	(45,742)	(55,518)
Proceeds from sale of assets	175	0
Net cash used in investing activities	(251,018)	(1,063,024)
CASH FLOWS FROM FINANCING ACTIVITIES:
Stock option exercises	172,766	0
Net cash provided by financing activities	172,766	0
NET INCREASE IN CASH AND CASH EQUIVALENTS	1,594,920	87,875
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	4,007,341	2,573,405
CASH AND CASH EQUIVALENTS, END OF PERIOD	5,602,261	2,661,280
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	801	901
Cash paid during the period for income taxes	$ 0	$ 0