Statements Of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities
Net loss	$ (7,926,939)	$ (3,006,485)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	495,152	669,040
Amortization	149,917	149,917
Amortization of deferred finance costs and debt discounts	1,938,777	1,366,471
Share-based compensation	441,861	1,794,729
Gain on debt conversion	(2,095)
Loss on asset disposal	7,373	4,122
Adjustment of warrants and convertible debt features	(1,497,649)	(9,081,354)
Interest due from issuance of stock	394,588
Changes in operating assets and liabilities:
Accounts receivable	3,084,843	2,868,900
Other receivables	53,217	19,298
Inventories	(481,926)	(1,342,544)
Prepaid expenses and other current assets	653,439	(398,952)
Other assets	462	2,144
Accounts payable	387,992	(974,612)
Accrued liabilities	275,194	71,203
Deferred revenue	(1,268,627)	(552,786)
Other liabilities		(2,307)
Net cash used in operating activities	(3,294,421)	(8,413,216)
Cash flows from investing activities
Purchase of equipment		(113,030)
Net cash used in investing activities		(113,030)
Cash flows from financing activities
Payments of term note	(2,000,000)	(2,000,000)
Proceeds from revolving line of credit	23,048,799	33,073,407
Payments of revolving line of credit	(23,759,722)	(40,363,204)
Proceeds from subordinated convertible debt, net of issuance costs		7,738,351
Proceeds from Healthcare Royalty Partners debt	2,500,000
Payments of Healthcare Royalty Partners debt	(158,773)	(925,533)
Proceeds from issuance of stock and warrants, net of issuance costs	167	9,167,756
Net cash provided by financing activities	(369,529)	6,690,777
Net decrease in cash and cash equivalents	(3,663,950)	(1,835,469)
Cash and cash equivalents at beginning of period	7,777,718	13,954,919
Cash and cash equivalents at end of period	$ 4,113,768	$ 12,119,450