CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ 15,931		$ (178)
Reconciliation of net income (loss) to net cash used in operating activities
Depreciation and amortization of fixed assets	240		185
Amortization of license fee	50		50
Stock based compensation	906		519
Amortization of debt issuance costs	397		16
Amortization of product acquisition costs	60		60
Provision for write down of inventory	50		114
Amortization of debt discount on convertible 3.75% senior notes	3,233		0
Change in the fair value of derivative liability	(23,144)		0
Changes in operating assets and liabilities
Accounts receivable	(2,919)		(304)
Inventories	(1,362)		32
Prepaid expenses and other assets	7		(371)
Accounts payable and accrued expenses	842		42
Deferred income	(84)		(635)
Net cash used in operating activities	(5,793)		(470)
Cash flows from investing activities:
Product acquisition costs	(1,517)		0
Capital expenditures	(1,278)		(312)
Net cash used in investing activities	(2,795)		(312)
Cash flows from financing activities:
Proceeds from exercise of common stock options and warrants	18		456
Principal payments on capital lease obligations	(65)		(9)
Debt issuance costs	(27)		0
Costs related to stock issuance	0		(4)
Net cash (used in) provided by financing activities	(74)		443
Net decrease in cash and cash equivalents	(8,662)		(339)
Cash and cash equivalents at beginning of period	158,883	[1]	2,101
Cash and cash equivalents at end of period	150,221		1,762
Supplemental Cash flow information:
Cash payments for interest	2,777		123
Cash payments for income taxes	106		16
Non cash investing and financing transactions:
Issuance of restricted stock	$ 347		$ 0

[1] Derived from the audited December 31, 2014 financial statements