Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

The provision for income taxes consists of the following components:

Income taxes have been based on the following components of income (loss) before provision for income taxes:

The Irish federal statutory rate is reconciled to the effective tax rate as follows:

	Year ended December 31, 2018						Year ended December 31, 2017						Year ended December 31, 2016
Statutory rate		12.50	%	$	(9,573	)		12.50	%	$	(3,620	)		12.50	%	$	(1,669	)
Impact of U.S. tax rate		(0.11	)%		81			(0.80	)%		232			0.10	%		(13	)
Impact of valuation allowance		(11.42	)%		8,749			(13.64	)%		3,949			(12.80	)%		1,708
Research and development tax credit		0.45	%		(341	)		0.76	%		(220	)		—			—
Other, net		(2.03	)%		1,557			(0.36	)%		103			(0.65	)%		87
Effective tax rate		(0.61	)%	$	472			(1.54	)%	$	444			(0.85	)%	$	113

The significant components of the Company’s deferred tax assets and liabilities are as follows:

	Year ended December 31,
	2018			2017			2016
Deferred tax assets
Share-based compensation	$	27		$	3		$	1
Depreciation		(49	)		6			—
Net operating loss carryforwards		13,648			5,409			1,706
163(j) interest expense limitation		115			—			—
Other		665			239			1
Valuation allowance		(14,406	)		(5,657	)		(1,708	)
Total deferred tax assets	$	—		$	—		$	—

Deferred tax liabilities
		—			—			—
Total deferred tax assets	$	—		$	—		$	—

Net deferred tax asset	$	—		$	—		$	—

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows: