CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flow from operating activities:
Net loss	$ (6,406,764)	$ (16,862,557)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	639,304	512,916
Amortization of identifiable intangible assets	0	39,500
Amortization of debt discounts	1,389,122	859,086
Change in fair value of derivative liabilities	(1,877,000)	(10,871,504)
Change in fair value of 10% convertible preferred stock warrants	(52,599)	(176,491)
Change in allowance for doubtful accounts	51,534	154,280
Interest expense paid in shares of common stock	693,585	688,465
Share-based compensation	939,282	618,594
Fair value of common stock issued in excess of fair value of warrants tendered	0	19,957,854
Changes in operating assets and liability:
Accounts receivable	(408,707)	(639,723)
Inventories	(601,391)	608,504
Prepaid expenses and deposits	(72,514)	80,952
Accounts payable	674,886	767,933
Accrued liabilities	676,158	444,399
Customer deposits	803,150	0
Net cash used in operating activities	(3,551,954)	(3,817,792)
Cash flows from investing activities:
Purchase of property and equipment	(944,466)	(689,442)
Net cash used in investing activities	(944,466)	(689,442)
Cash flows from financing activities:
Proceeds from 12% revolving credit facility	300,000	0
Repayments of other debt	(43,642)	(62,638)
Net cash provided by financing activities	4,701,022	4,965,313
Net increase in cash	204,602	458,079
Cash and cash equivalents at beginning of period	221,437	883,936
Cash and cash equivalents at end of period	426,039	1,342,015
Supplemental disclosures of cash flow information:
Cash paid for interest	193,646	150,124
Non-cash investing and financing activities:
Shares issued in payments of dividends on 10% convertible preferred stock	342,092	343,992
Amortization of 10% convertible preferred stock discount	0	221,386
Fair value of warrants issued with 8% convertible promissory notes	0	391,365
Fair value of conversion option of 8% convertible promissory notes	0	3,985,139
Fair value of common stock issued in exchange for warrants tendered and cancelled	0	24,817,086
8% Convertible promissory note
Cash flows from financing activities:
Proceeds from convertible debt	0	5,027,951
12% convertible promissory note
Cash flows from financing activities:
Proceeds from convertible debt	$ 4,444,664	$ 0