Annual report pursuant to Section 13 and 15(d)

Income Taxes (Tables)

v3.3.1.900
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Income Tax Disclosure [Abstract]  
Total Provision for Income Taxes

The total income tax benefit consists of the following (in thousands):

 

 

 

Year Ended December 31,

 

 

 

2015

 

 

2014

 

 

2013

 

Federal income tax benefit

 

$

 

 

$

 

 

$

(14

)

Total

 

$

 

 

$

 

 

$

(14

)

 

Reconciliation Between the Tax Provision Computed at the Federal Statutory Income Tax Rate and Actual Effective Income Tax Rate

Reconciliation between the tax provision computed at the federal statutory income tax rate of 34% and the Company’s actual effective income tax rate is as follows:

 

 

 

Year Ended December 31,

 

 

 

2015

 

 

2014

 

 

2013

 

Federal tax at statutory rate

 

 

34

%

 

 

34

%

 

 

34

%

Warrant valuation

 

 

29

%

 

 

40

%

 

 

-17

%

Permanent items and other

 

 

-15

%

 

 

-1

%

 

 

0

%

Valuation allowance

 

 

-48

%

 

 

-73

%

 

 

-17

%

Total

 

 

0

%

 

 

0

%

 

 

0

%

 

Components of Net Deferred Tax Assets

 

The significant components of net deferred tax assets as of December 31, 2015 and 2014 were as follows (in thousands):

 

 

 

December 31,

 

 

 

2015

 

 

2014

 

Capitalized research and development expenses

 

$

50,808

 

 

$

50,852

 

Net operating loss carryforwards

 

 

115,869

 

 

 

105,042

 

Research and development and other credit carryforwards

 

 

24,268

 

 

 

12,108

 

Other

 

 

18,748

 

 

 

22,060

 

Total deferred tax assets

 

 

209,693

 

 

 

190,062

 

Valuation allowance

 

 

(209,693

)

 

 

(190,062

)

Net deferred tax assets

 

$

 

 

$

 

 

Schedule of Unrecognized Tax Benefits

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

 

 

 

Year Ended December 31,

 

 

 

2015

 

 

2014

 

 

2013

 

Balance at January 1

 

$

5,503

 

 

$

4,274

 

 

$

4,104

 

Increase related to current year tax position

 

 

2,687

 

 

 

720

 

 

 

164

 

Increase related to prior year tax position

 

 

1,476

 

 

 

509

 

 

 

6

 

Balance at December 31

 

$

9,666

 

 

$

5,503

 

 

$

4,274