CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (3,361,735)	$ (3,139,923)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	72,567	73,191
Amortization of convertible debt discount	282,028	0
Amortization of preferred stock discount	0	68,346
Change in fair value of derivative liabilities	435,424	(126,580)
Change in fair value of 10% convertible preferred stock warrants	40,641	(347,097)
Share-based compensation	141,492	497,039
Change in allowance for doubtful accounts	(131,996)	100,415
Changes in operating assets and liability:
Accounts receivable	67,082	(247,973)
Inventories	46,718	(829,277)
Prepaid expenses and deposits	78,486	(20,868)
Accounts payable	270,064	995,904
Accrued liabilities	146,418	128,973
Net cash used in operating activities	(1,912,811)	(2,542,644)
Cash flows from investing activities:
Purchase of property and equipment	(352,708)	(848,116)
Net cash used in investing activities	(352,708)	(848,116)
Cash flows from financing activities:
Proceeds from issuance of demand promissory notes	0	5,000,001
Recovery of shareholder short swing profits	3,095,308	0
Repayments of convertible debt	0	(772,500)
Repayments of revolving credit agreement	0	(466,000)
Net cash provided by financing activities	4,845,309	3,761,501
Net increase in cash	2,579,790	370,741
Cash and cash equivalents at beginning of period	346,905	1,982,772
Cash and cash equivalents at end of period	2,926,695	2,353,513
Supplemental disclosures of cash flow information:
Cash paid for interest	1,322	66,142
Fair value of conversion option of 8% convertible promissory notes	545,425	0
Redeemable common stock reclassified to permanent equity	0	242,500
Fair value of bonus warrants granted	0	57,034
8% Convertible promissory note
Cash flows from financing activities:
Proceeds from issuance of demand promissory notes	1,750,001	0
Supplemental disclosures of cash flow information:
Fair value of warrants issued	249,151	0
Revolving Credit Agreement
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of convertible debt discount	0	305,206
10% Convertible Preferred Stock
Supplemental disclosures of cash flow information:
Conversion of 10% convertible preferred stock and debt	39,000	262,500
Dividends on 10% convertible preferred stock	356,579	348,524
Fair value of warrants issued	0	1,875,463
Amortization of 10% convertible preferred stock discount	$ 455,758	$ 474,680