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INCOME TAXES
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
INCOME TAXES INCOME TAXES
Income tax provision consisted of the following (in thousands, except for effective tax rate percentage):

Three Months Ended
June 30,
Six Months Ended
June 30,
 2021202020212020
Income (loss) before provision for income taxes$5,847 $(671)$8,024 $(5,447)
Provision for income taxes506 41 647 93 
Effective tax rate8.7 %(6.1)%8.1 %(1.7)%

The provision for income tax for the three months and six months ended June 30, 2021 and 2020, respectively, resulted primarily from estimated foreign taxes included in the calculation of the effective tax rate. We continue to carry a full valuation allowance on our U.S. federal and State as well as Canada federal deferred tax assets. The effective tax rate is lower than statutory tax rate is mainly due to the benefit recorded on deferred tax assets utilized in current year for the U.S. federal and state jurisdictions.

As of June 30, 2021, we had unrecognized tax benefits under ASC 740 Income Taxes of approximately $4.5 million and applicable interest of $0. The total amount of unrecognized tax benefits that would affect our effective tax rate, if recognized, is $0. Our policy is to account for interest and penalties related to uncertain tax positions as a component of income tax provision. We do not expect to have any significant changes to unrecognized tax benefits during the next twelve months.

As of June 30, 2021, we had net deferred income tax assets of $2.7 million and deferred income tax liabilities of $0.4 million. Because we have net operating loss and credit carryforwards, there are open statutes of limitations in which federal, state, and foreign taxing authorities may examine our tax returns for all years from 2001 through the current period. Currently we are under examination by the Internal Revenue Services for tax year 2018 and California Franchise Tax Board for tax years 2017 to 2019.
We maintain a valuation allowance of $28.5 million against certain of our deferred tax assets, including all federal, state, and certain foreign deferred tax assets because of uncertainties regarding the realization of the asset balance due to historical losses, the variability of operating results, and uncertainty regarding near term projected results. If we determine the deferred tax assets are realizable based on our assessment of relevant factors, an adjustment to the valuation allowance may increase income in the period such determination is made.