INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of (benefit from) provision for income taxes

The (benefit) provision for income taxes consists of the following (in thousands):



Current:	2018		2017			2016
Federal	$	896	$	384		$	1,087
State	171		(1,813		)	140
	$	1,067	$	(1,429	)	$	1,227
Deferred:
Federal	$	—	$	—		$	16,291
State	—		—			6,700
	—		—			22,991
Total (benefit) provision for income taxes	$	1,067	$	(1,429	)	$	24,218

Schedule of reconciliation of income taxes at the statutory federal income tax rate to the actual tax rate

A reconciliation of income taxes at the statutory federal income tax rate to the actual tax rate included in the statements of operations is as follows (in thousands):



	2018			2017			2016
Tax at federal statutory rate	$	7,975		$	(36,374	)	$	(22,580	)
State tax, net of federal benefit	192			71			(748		)
Research credit	(41		)	(41		)	(902		)
Stock based compensation	1,259			159			1,435
Non-deductible meals and entertainment	223			973			955
Non-deductible other expense	308			6,508			1,426
Change in valuation allowance	(9,233		)	1,326			44,632
Uncertain tax provisions	384			(1,611		)	—
Tax rate changes	—			27,560			—
Total	$	1,067		$	(1,429	)	$	24,218

Schedule of significant components of the Company's deferred tax assets

Significant components of the Company’s deferred tax assets are as follows (in thousands):



	2018			2017
Deferred tax assets:
Net operating losses	$	6,618		$	16,391
Tax credit carryforwards	1,096			1,860
Intangibles	33,604			38,509
Stock-based compensation	2,286			1,505
Reserves and other accruals not currently deductible	10,706			12,094
Total deferred tax assets	54,310			70,359
Valuation allowance for deferred tax assets	(41,905		)	(54,224		)
	$	12,405		$	16,135
Deferred tax liabilities
Convertible debt	$	(12,213	)	$	(16,135	)
Fixed Assets	(192		)	—
Net deferred tax asset (liability)	—			—

Summary of the activity related to the entity's unrecognized tax benefits

The following table summarizes the activity related to the Company’s unrecognized tax benefits for the three years ended December 31, 2018 (in thousands):



Unrecognized tax benefits—January 1, 2016	$	5,686
Gross increases—current year tax positions	240
Gross increases—prior year tax positions	8,761
Unrecognized tax benefits—December 31, 2016	14,687
Gross increases—current year tax positions	3,423
Gross decreases—prior year tax positions	(966		)
Unrecognized tax benefits—December 31, 2017	17,144
Gross increases—current year tax positions	262
Gross decreases—prior year tax positions	(1,342		)
Unrecognized tax benefits—December 31, 2018	$	16,064