Statements Of Cash Flows (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities
Net loss	$ (4,920,147)	$ (5,812,912)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	263,170	344,455
Amortization	74,958	74,958
Amortization of warrants	860,890	511,079
Share-based compensation, value	598,827	937,323
Gain/loss on debt conversion	(2,095)
Adjustment of warrants and debt conversion features	(604,007)	188,070
Interest due from issuance of stock	204,547
Changes in operating assets and liabilities:
Accounts receivable	1,709,291	810,557
Other receivables	54,064	20,642
Inventories	(389,646)	(1,178,943)
Prepaid expenses and other current assets	(179,277)	(551,281)
Other assets	(1,170)	(875)
Accounts payable	1,181,230	392,913
Accrued liabilities	(323,555)	20,829
Deferred revenue	323,115	25,318
Other liabilities		(1,533)
Net cash used in operating activities	(1,149,805)	(4,219,400)
Cash flows from investing activities
Purchase of equipment		(82,272)
Net cash used in investing activities		(82,272)
Cash flows from financing activities
Payments of term note	(1,000,000)	(1,000,000)
Proceeds from revolving line of credit	11,235,938	20,695,969
Payments of revolving line of credit	(9,694,979)	(18,334,786)
Proceeds/Payments from Healthcare Royalty Partners debt	2,500,000
Payments of Healthcare Royalty Partners debt	(108,742)	(586,629)
Proceeds from issuance of stock and warrants, net of issuance costs		40,898
Net cash provided by financing activities	2,932,217	815,452
Net decrease in cash and cash equivalents	1,782,412	(3,486,220)
Cash and cash equivalents at beginning of period	7,777,718	13,954,919
Cash and cash equivalents at end of period	$ 9,560,130	$ 10,468,699