Annual report pursuant to Section 13 and 15(d)

Income Taxes (Tables)

v3.10.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2018
Income Tax Disclosure [Abstract]  
Summary of components of the income tax provision The components of the income tax provision for the years ended December 31, 2018 and 2017 are as follows:

 

 

Year Ended December 31,

 

 

 

2018

 

 

2017

 

Current

 

$

24

 

 

$

7

 

Deferred

 

 

 

 

 

 

Total

 

$

24

 

 

$

7

 

 

Schedule of reconciliation of effective tax rate expense (benefit) for continuing operations and the statutory federal income tax rate

A reconciliation of the U.S. statutory income tax rate to the Company’s effective tax rate is as follows for the years ended December 31, 2018, 2017 and 2016:

 

 

 

Year ended

 

 

 

 

December 31,

 

 

 

 

2018

 

 

 

2017

 

 

 

2016

 

 

Federal income tax computed at federal statutory tax rate

 

 

21.00

 

%

 

 

34.00

 

%

 

 

34.00

 

%

State income tax, net of federal benefit

 

 

6.01

 

 

 

 

5.35

 

 

 

 

4.79

 

 

Permanent items

 

 

(0.61

)

 

 

 

(1.57

)

 

 

 

(2.83

)

 

Federal and state research and development credits

 

 

4.79

 

 

 

 

7.36

 

 

 

 

2.93

 

 

Rate change

 

 

 

 

 

 

(31.79

)

 

 

 

 

 

Other

 

 

0.01

 

 

 

 

0.66

 

 

 

 

(0.08

)

 

Change in valuation allowance

 

 

(31.24

)

 

 

 

(14.02

)

 

 

 

(38.81

)

 

Effective income tax rate

 

 

(0.04

)

%

 

 

(0.01

)

%

 

 

0.00

 

%

Schedule of components of deferred tax assets and liabilities

The principal components of the Company’s deferred tax assets and liabilities consist of the following at December 31, 2018 and 2017 (in thousands):

 

 

 

Year ended

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Deferred tax assets:

 

 

 

 

 

 

 

 

Federal and state net operating loss carryforwards

 

$

51,346

 

 

$

37,411

 

Tax credit carryforwards

 

 

10,558

 

 

 

7,573

 

Intangible assets

 

 

51

 

 

 

56

 

Stock-based compensation

 

 

2,108

 

 

 

1,059

 

Leasehold incentive

 

 

155

 

 

 

240

 

Other

 

 

2,809

 

 

 

1,237

 

Total deferred tax assets

 

 

67,027

 

 

 

47,576

 

Less valuation allowance

 

 

(67,027

)

 

 

(47,576

)

Net deferred tax assets

 

 

 

 

 

 

Deferred tax liabilities:

 

 

 

 

 

 

 

 

Fixed assets

 

 

 

 

 

 

Total deferred tax liabilities

 

 

 

 

 

 

Net deferred taxes

 

$

 

 

$