XML 53 R32.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Income Taxes (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2013
Income Tax Disclosure [Abstract] |
Summary of Income Taxes | Total income taxes for the years ended December 31, 2013, 2012 and 2011 were allocated as follows (in thousands):
|  | Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
To income |  | $ | 83 |  |  | $ | 611 |  |  | $ | (9,503 | )
To stockholders’ equity |  |  | 0 |  |  |  | 10 |  |  |  | 240 |
Total income taxes |  | $ | 83 |  |  | $ | 621 |  |  | $ | (9,263 | )
Summary of Income (Loss) before Taxes | Income (loss) before taxes for the years ended December 31, 2013, 2012 and 2011 is comprised of the following (in thousands):
|  | Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Domestic |  | $ | (44,142 | ) |  | $ | (88,945 | ) |  | $ | (36,091 | )
Foreign |  |  | 812 |  |  |  | 290 |  |  |  | 1,696 |
Loss before taxes |  | $ | (43,330 | ) |  | $ | (88,655 | ) |  | $ | (34,395 | )
Summary of Provision (Benefit) for Income Taxes | The provision (benefit) for income taxes for the years ended December 31, 2013, 2012 and 2011 is comprised of the following (in thousands):
|  | Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | (248 | ) |  | $ | 0 |  |  | $ | (10,786 | )
State |  |  | 33 |  |  |  | 29 |  |  |  | 0 |
Foreign |  |  | (229 | ) |  |  | 74 |  |  |  | 84 |
Total Current |  |  | (444 | ) |  |  | 103 |  |  |  | (10,702 | )
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 53 |  |  |  | 14 |  |  |  | (114 | )
State |  |  | 0 |  |  |  | 0 |  |  |  | 0 |
Foreign |  |  | 474 |  |  |  | 494 |  |  |  | 1,313 |
Total Deferred |  |  | 527 |  |  |  | 508 |  |  |  | 1,199 |
Provision (benefit) for income taxes |  | $ | 83 |  |  | $ | 611 |  |  | $ | (9,503 | )
Summary of Net Deferred Tax Assets | The Company’s net deferred tax assets consist of the following (in thousands):
|  | December 31, |
|  | 2013 |  |  | 2012 |
Deferred tax assets: |  |  |  |  |  |  |  |
Accrued expenses |  | $ | 11,292 |  |  | $ | 6,271 |
Inventory obsolescence provision |  |  | 3,539 |  |  |  | 1,992 |
Depreciation and amortization |  |  | 4,136 |  |  |  | 6,680 |
Deferred rent |  |  | 559 |  |  |  | 892 |
Net operating loss and tax credit carryforwards |  |  | 55,010 |  |  |  | 42,994 |
Stock-based compensation |  |  | 4,518 |  |  |  | 6,069 |
Unrecognized tax benefits |  |  | 1,190 |  |  |  | 613 |
Deferred tax assets |  |  | 80,244 |  |  |  | 65,511 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Amortization of acquired intangibles |  |  | (699 | ) |  |  | (1,016 | )
Net deferred tax assets |  |  | 79,545 |  |  |  | 64,495 |
Valuation allowance |  |  | (79,458 | ) |  |  | (63,881 | )
Net deferred tax assets |  | $ | 87 |  |  | $ | 614 |
Summary of Provision (Benefit) for Income Taxes Reconciles to Amount Computed by Applying Statutory Federal Income Tax Rate | The provision (benefit) for income taxes reconciles to the amount computed by applying the statutory federal income tax rate of 34% in 2013, 2012 and 2011 to income (loss) before provision for income taxes as follows (in thousands):
|  | Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Federal tax benefit, at statutory rate |  | $ | (14,732 | ) |  | $ | (30,142 | ) |  | $ | (11,694 | )
State benefit, net of federal benefit |  |  | (922 | ) |  |  | (757 | ) |  |  | (733 | )
Change in valuation allowance |  |  | 15,577 |  |  |  | 27,486 |  |  |  | 14,612 |
Tax expense/(benefit) from business combination |  |  | 0 |  |  |  | 0 |  |  |  | 909 |
Research and development credits |  |  | (1,084 | ) |  |  | (856 | ) |  |  | (1,731 | )
Share-based compensation |  |  | 2,433 |  |  |  | 1,616 |  |  |  | 526 |
Uncertain tax positions |  |  | (307 | ) |  |  | (46 | ) |  |  | (11,809 | )
Goodwill impairment |  |  | 0 |  |  |  | 3,700 |  |  |  | 596 |
Change in state apportionment |  |  | (767 | ) |  |  | 0 |  |  |  | 0 |
Other |  |  | (115 | ) |  |  | (390 | ) |  |  | (179 | )
|  | $ | 83 |  |  | $ | 611 |  |  | $ | (9,503 | )
Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits | A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in thousands):
|  | Amount |
Unrecognized tax benefits balance at December 31, 2010 |  | $ | 41,386 |
Increases related to current and prior year tax positions |  |  | 899 |
Settlements and lapses in statutes of limitations |  |  | (9,490 | )
Unrecognized tax benefits balance at December 31, 2011 |  |  | 32,795 |
Increases related to current and prior year tax positions |  |  | 475 |
Settlements and lapses in statutes of limitations |  |  | (50 | )
Unrecognized tax benefits balance at December 31, 2012 |  |  | 33,220 |
Increases related to current and prior year tax positions |  |  | 2,653 |
Settlements and lapses in statutes of limitations |  |  | (373 | )
Unrecognized tax benefits balance at December 31, 2013 |  | $ | 35,500 |

X
- Definition Income tax effects allocated directly to equity. + References No definition available. + Details
Name: | nvtl_IncomeTaxEffectsAllocatedDirectlyToEquityTableTextBlock
Namespace Prefix: | nvtl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
Name: | us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
Name: | us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 55 -Paragraph 217 -URI http://asc.fasb.org/extlink&oid=32707879&loc=d3e36027-109320 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
Name: | us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration