Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash Flows From Operating Activities
Net income	$ 12,499	$ 7,742
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities:
Stock-based compensation	2,717	2,719
Deferred taxes	55	0
Depreciation and amortization	4,789	2,596
Loss on disposal of property and equipment	40	0
Non-cash interest relating to convertible notes and loan cost amortization	5,135	0
Changes in operating assets and liabilities:
Accounts receivable, net	(4,348)	(2,057)
Inventories, net	(6,223)	(3,296)
Prepaid expenses and other current assets	(2)	(19)
Accounts payable	(130)	630
Accrued compensation and related expenses	(329)	(40)
Current income taxes, net	(5,225)	1,124
Accrued Medicaid rebates	2,164	1,023
Accrued expenses, returned goods reserve, and other	1,420	870
Net Cash and Cash Equivalents Provided by Operating Activities	12,562	11,292
Cash Flows From Investing Activities
Acquisition of product rights and other related assets	(30,500)	(34,634)
Acquisition of property and equipment	(1,078)	(782)
Net Cash and Cash Equivalents Used in Investing Activities	(31,578)	(35,416)
Cash Flows From Financing Activities
Net proceeds from equity offering	0	46,680
Proceeds from stock option exercises	658	777
Proceeds from warrant exercise	0	180
Excess tax benefit from share-based compensation awards	234	432
Net Cash and Cash Equivalents Provided by Financing Activities	892	48,069
Change in Cash and Cash Equivalents	(18,124)	23,945
Cash and cash equivalents, beginning of period	169,037	11,105
Cash and cash equivalents, end of period	150,913	35,050
Supplemental disclosure for cash flow information:
Cash paid for interest	2,048	0
Cash paid for income taxes	10,668	137
Supplemental non-cash investing and financing activities:
Contingent payable for asset purchase	0	1,000
Property and equipment purchased on credit	$ 109	$ 0