CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (11,985)	$ 6,668	$ 5,251
Reconciliation of net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization of fixed assets	946	560	415
Amortization of license fee	0	100	100
Provision for write down of inventory	1,400	50	228
Issuance of stock to consultant	189	0	80
Stock based compensation	3,090	2,273	823
Amortization of debt issuance costs	828	1,132	107
Amortization of intangibles	2,833	514	120
Foreign currency exchange loss (gain)	936	(109)	0
Amortization of debt discount on convertible 3.75% senior notes	7,599	6,680	261
Change in the fair value of derivative liability	0	(23,144)	(2,300)
Loss on disposal of property	16	0	0
Changes in operating assets and liabilities:
Accounts receivable	(7,681)	1,250	(9,419)
Inventories	(5,042)	(3,578)	(143)
Prepaid expenses and other current receivables	3,427	(5,408)	(1,075)
Other assets	316	(14)	0
Accounts payable and accrued expenses	4,702	(2,849)	2,346
Deferred income	(476)	362	(685)
Net cash used in operating activities	1,098	(15,513)	(3,891)
Cash flows from investing activities:
Capital expenditures	(18,551)	(5,998)	(834)
Acquisition of product rights and other related assets	0	(35,418)	0
Product acquisition costs, net	(3,421)	(11,652)	(2,958)
Net cash used in investing activities	(21,972)	(53,068)	(3,792)
Cash flows from financing activities:
Proceeds from convertible 3.75% senior notes, net of $4,765	0	0	138,985
Proceeds from issuance of stock, net	0	(3)	24,858
Proceeds from note payable, net of debt issuance costs	0	0	2,755
Principal payments on note payable, bank	0	(3,160)	(3,000)
Proceeds from exercise of common stock options and warrants	96	165	837
Principal payments on capital lease obligations	(70)	(132)	(64)
Recovery from stockholder, net	(36)	19	0
Excess tax benefits from stock compensation	0	0	94
Net cash provided by (used in) financing activities	(10)	(3,111)	164,465
Effect of exchange rate on cash and cash equivalents	(301)	0	0
Net increase (decrease) in cash and cash equivalents	(20,884)	(71,692)	156,782
Cash and cash equivalents at beginning of year	87,191	158,883	2,101
Cash and cash equivalents at end of year	66,006	87,191	158,883
Supplemental Cash flow information:
Cash payments for interest	5,393	5,517	178
Cash payments for income taxes	113	123	23
Non cash investing and financing transactions:
Reclassification of derivative liability to equity	0	18,256	0
Issuance of stock to consultant	0	31	0
Bifurcation of derivative from convertible 3.75% senior notes	0	0	41,400
Payable related to product acquisition costs	0	0	6,000
Restricted Stock
Non cash investing and financing transactions:
Issuance of restricted stock	$ 0	$ 347	$ 0