| Income Tax Disclosure [Abstract] | Period [Axis] |
|---|
2016-01-01 - 2016-12-31 |
|---|
Income Tax Disclosure [Abstract] | |
Schedule of Components of Income (Loss) Before Provision for (Benefit from) Income Taxes |
The components of our income (loss) before provision for (benefit from) income taxes are as follows (in thousands):
|
|
|
Year Ended December 31, |
|
|
|
|
2016 |
|
|
2015 |
|
|
2014 |
|
|
|
|
|
|
|
|
|
|
|
|
(unaudited) |
|
|
United States |
|
$ |
(11,843 |
) |
|
$ |
(9,232 |
) |
|
$ |
(7,885 |
) |
|
Foreign |
|
|
215 |
|
|
|
788 |
|
|
|
(909 |
) |
|
Loss before provision for (benefit from) income
taxes |
|
$ |
(11,628 |
) |
|
$ |
(8,444 |
) |
|
$ |
(8,794 |
) |
|
Components of Provision for (Benefit from) Income Taxes |
The provision for (benefit from) income taxes consisted of the following (in thousands):
|
|
|
Year Ended December 31, |
|
|
|
|
2016 |
|
|
2015 |
|
|
2014 |
|
|
Current: |
|
|
|
|
|
|
|
|
|
|
|
|
|
Federal |
|
$ |
— |
|
|
$ |
— |
|
|
$ |
— |
|
|
State |
|
|
2 |
|
|
|
3 |
|
|
|
3 |
|
|
Foreign |
|
|
(19 |
) |
|
|
(38 |
) |
|
|
123 |
|
|
Total current provision for (benefit from)
income taxes |
|
|
(17 |
) |
|
|
(35 |
) |
|
|
126 |
|
|
Deferred: |
|
|
|
|
|
|
|
|
|
|
|
|
|
Federal |
|
|
1 |
|
|
|
(26 |
) |
|
|
14 |
|
|
State |
|
|
— |
|
|
|
— |
|
|
|
— |
|
|
Total deferred provision for (benefit from)
income taxes |
|
|
1 |
|
|
|
(26 |
) |
|
|
14 |
|
|
Total |
|
$ |
(16 |
) |
|
$ |
(61 |
) |
|
$ |
140 |
|
|
Reconciliation of Statutory Federal Income Tax to Effective Tax |
The reconciliation of the federal statutory income tax to our effective tax is as follows (in thousands):
|
|
|
Year Ended December 31, |
|
|
|
|
2016 |
|
|
2015 |
|
|
2014 |
|
|
Federal tax at statutory rate |
|
$ |
(3,954 |
) |
|
$ |
(2,871 |
) |
|
$ |
(2,989 |
) |
|
State taxes |
|
|
(184 |
) |
|
|
(155 |
) |
|
|
(185 |
) |
|
Foreign rate differential |
|
|
(14 |
) |
|
|
(233 |
) |
|
|
310 |
|
|
Nondeductible expenses |
|
|
(48 |
) |
|
|
161 |
|
|
|
92 |
|
|
Research and development credit |
|
|
(180 |
) |
|
|
(153 |
) |
|
|
(481 |
) |
|
Stock compensation |
|
|
784 |
|
|
|
109 |
|
|
|
74 |
|
|
Change in valuation allowance |
|
|
3,580 |
|
|
|
3,081 |
|
|
|
3,319 |
|
|
Total |
|
$ |
(16 |
) |
|
$ |
(61 |
) |
|
$ |
140 |
|
|
Schedule of Deferred Tax Assets and Liabilities |
Significant components of our deferred tax assets and liabilities are as follows (in thousands):
|
|
|
December 31, |
|
|
|
|
2016 |
|
|
2015 |
|
|
Deferred tax assets: |
|
|
|
|
|
|
|
|
|
Net operating loss carryforwards |
|
$ |
27,541 |
|
|
$ |
25,814 |
|
|
Accruals and reserves |
|
|
4,502 |
|
|
|
3,893 |
|
|
Amortization of intangible assets |
|
|
1,248 |
|
|
|
1,198 |
|
|
Tax credit carryforwards |
|
|
2,808 |
|
|
|
2,441 |
|
|
Depreciation |
|
|
602 |
|
|
|
414 |
|
|
Other |
|
|
226 |
|
|
|
181 |
|
|
Gross deferred tax assets |
|
|
36,927 |
|
|
|
33,941 |
|
|
Valuation allowance |
|
|
(36,333 |
) |
|
|
(32,753 |
) |
|
Total deferred tax assets |
|
|
594 |
|
|
|
1,188 |
|
|
Deferred tax liabilities: |
|
|
|
|
|
|
|
|
|
Change in tax accounting method for reserves and
allowances |
|
|
(594 |
) |
|
|
(1,188 |
) |
|
Amortization of intangible assets |
|
|
(2 |
) |
|
|
(1 |
) |
|
Total deferred tax liabilities |
|
|
(596 |
) |
|
|
(1,189 |
) |
|
Net deferred tax liability |
|
$ |
(2 |
) |
|
$ |
(1 |
) |
|
Reconciliation of Unrecognized Tax Benefits |
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands):
|
Balance as of December 31, 2013 |
|
$ |
2,210 |
|
|
Tax positions related to the current year: |
|
|
|
|
|
Additions |
|
|
774 |
|
|
Balance as of December 31, 2014 |
|
|
2,984 |
|
|
Tax positions related to the current year: |
|
|
|
|
|
Additions |
|
|
436 |
|
|
Tax positions related to the prior year: |
|
|
|
|
|
Reductions |
|
|
(285 |
) |
|
Balance as of December 31, 2015 |
|
|
3,135 |
|
|
Tax positions related to the current year: |
|
|
|
|
|
Additions |
|
|
462 |
|
|
Tax positions related to the prior year: |
|
|
|
|
|
Reductions |
|
|
(7 |
) |
|
Balance as of December 31, 2016 |
|
$ |
3,590 |
|
|