Statements Of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities
Net loss	$ (4,139,848)	$ (4,920,147)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	136,663	263,170
Amortization of intangible assets	74,958	74,958
Amortization of deferred finance costs and debt discount	70,122	860,890
Share-based compensation	307,992	598,827
Gain on debt conversion		(2,095)
Adjustment of warrants and convertible debt features	1,076,139	(604,007)
Interest due from issuance of stock		204,547
Changes in operating assets and liabilities:
Accounts receivable	(789,933)	1,709,291
Other receivables	21,305	54,064
Inventories	(694,085)	(389,646)
Prepaid expenses and other current assets	(53,993)	(179,277)
Other assets	(62)	(1,170)
Accounts payable	(357,303)	1,181,230
Accrued liabilities	725,025	(323,555)
Deferred revenue	1,244,840	323,115
Net cash used in operating activities	(2,378,180)	(1,149,805)
Cash flows from investing activities
Purchase of equipment
Net cash used in investing activities
Cash flows from financing activities
Payments of term note		(1,000,000)
Proceeds from revolving line of credit		11,235,938
Payments of revolving line of credit		(9,694,979)
Proceeds from Healthcare Royalty Partners debt		2,500,000
Payments of Healthcare Royalty Partners debt	(38,592)	(108,742)
Payments for issuance of stock and warrants	(56,514)
Net cash provided (used) by financing activities	(95,106)	2,932,217
Net increase (decrease) in cash and cash equivalents	(2,473,286)	1,782,412
Cash and cash equivalents at beginning of period	13,775,130	7,777,718
Cash and cash equivalents at end of period	$ 11,301,844	$ 9,560,130