The components of the provision for income taxes for the years ended December 31, 2016 and 2015 are as follows (in thousands):
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|
Year Ended December 31, |
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|
2016 |
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|
2015 |
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Current: |
|
|
|
|
|
|
|
|
Federal |
|
$ |
— |
|
|
$ |
— |
|
State |
|
|
1 |
|
|
|
2 |
|
Foreign |
|
|
24 |
|
|
|
24 |
|
Total current tax expense |
|
|
25 |
|
|
|
26 |
|
Deferred: |
|
|
|
|
|
|
|
|
Federal |
|
|
— |
|
|
|
— |
|
State |
|
|
— |
|
|
|
— |
|
Foreign |
|
|
— |
|
|
|
— |
|
Total deferred tax benefit |
|
|
— |
|
|
|
— |
|
Total tax expense |
|
$ |
25 |
|
|
$ |
26 |
|