Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Summary of Unrecognized Tax Benefits

The following table summarizes the activity related to the Company’s unrecognized tax benefits (in thousands):

	December 31,
	2015		2014		2013
Beginning balance of unrecognized tax benefits	$	1,019	$	899	$	714
Gross increases based on tax positions related to current year	113		120		185
Gross increases based on tax positions related to prior year	—		—		—
Settlements with taxing authorities	—		—		—
Expiration of statute of limitations	—		—		—
Ending balance of unrecognized tax benefits	$	1,132	$	1,019	$	899

Reconciliation of Income Tax to Expense (Benefit)

The reconciliation of income tax from continuing operations computed at the Federal statutory tax rate to the (benefit)expense for income taxes is as follows (in thousands):

	December 31,
	2015			2014			2013
Tax at statutory rate	$	(19,586	)	$	20,934		$	(24,684	)
State taxes, net of federal benefit	(691		)	1,499			(1,552		)
Change in valuation allowance	(14,042		)	(12,968		)	19,526
Valuation allowance adjustment for continuing operations	15,498			—			—
Permanent interest disallowed	375			(8,608		)	7,197
Foreign rate change	(1,993		)	—			—
Other permanent differences	114			1,226			1,279
Research and development tax credits	(1,060		)	(1,387		)	(744		)
State tax rate benefit	2,181			(503		)	(822		)
Foreign rate differential	2,550			—			—
Other	753			(109		)	(200		)
Tax (benefit) expense	$	(15,901	)	$	84		$	—

Schedule of Deferred Tax Assets

The components of the deferred tax assets are as follows (in thousands):

	December 31,
	2015			2014
Deferred tax assets:
Net operating losses	$	72,402		$	82,054
Capitalized research and development	5,768			7,176
Accrued expenses	1,266			2,030
Research and development credits	4,451			3,395
Accrued product returns	324			1,772
Inventory reserve and UNICAP	1,063			2,956
Amortization	1,998			2,556
Deferred revenue	3,494			4,446
Other, net	6,432			5,128
Total deferred tax assets	97,198			111,513
Less valuation allowance	(96,298		)	(110,338		)
Net deferred tax assets	900			1,175
Deferred tax liabilities:
Depreciation	(900		)	(1,175		)
IPR&D	(18,450		)	(20,500		)
Total deferred tax liabilities	(19,350		)	(21,675		)
Net deferred tax liability	$	(18,450	)	$	(20,500	)