Income Taxes	6 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The benefit of income taxes in the three months ended September 30, 2020 was $1,298, or an effective tax rate benefit of 14.2%. The provision for income taxes in the three months ended September 30, 2019 was $509, or an effective tax rate of 7.7%. The decrease in the effective tax rate for the three months ended September 30, 2020 compared to the prior year was primarily due to an increase in the tax benefit for research and development credits in which the research and development credit remained consistent on a gross basis compared to the prior year while the annualized estimated pretax book income decreased. This benefit was partially offset by higher nondeductible officer’s compensation. The provision for income taxes in the six months ended September 30, 2020 was $318, or an effective tax rate of 3.2%. The provision for income taxes in the six months ended September 30, 2019 was $129, or an effective tax rate of 1.7%. The increase in the effective tax rate for the six months ended September 30, 2020 compared to the prior year was primarily due to the increase of nondeductible stock option tax expense. The deferred tax assets and liabilities are presented net in the accompanying condensed consolidated balance sheets as noncurrent. We expect to receive the full benefit of the deferred tax assets recorded, with the exception of certain state credits and state net operating loss carryforwards, for which we have recorded a valuation allowance. Uncertain tax positions We had unrecognized tax benefits of $4,748 and $4,192 related to various federal, state and local income tax matters as of September 30, 2020 and March 31, 2020, respectively. The unrecognized benefits consisted of liabilities of $1,103 and $1,203 and reserves against deferred tax assets of $3,645 and $2,989 as of September 30, 2020 and March 31, 2020, respectively. If recognized, this amount would reduce our effective tax rate. We are no longer subject to United States federal income tax examinations for tax years before fiscal year ended 2017. With a few exceptions, we are no longer subject to state or local income tax examinations for tax years before fiscal year ended 2016. We do not anticipate the total unrecognized tax benefits to significantly change due to the settlement of audits or the expiration of statute of limitations within the next twelve months. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), signed into law on March 27, 2020, has resulted in significant changes to the U.S. federal corporate tax law. Additionally, several state and foreign jurisdictions have enacted additional legislation and or comply with federal changes. We have considered the applicable tax law changes and recognized the impact in our quarterly income tax provision, as applicable.

Income Taxes

6 Months Ended

Sep. 30, 2020

12. Income Taxes

The benefit of income taxes in the three months ended September 30, 2020 was $1,298, or an effective tax rate benefit of 14.2%. The provision for income taxes in the three months ended September 30, 2019 was $509, or an effective tax rate of 7.7%. The decrease in the effective tax rate for the three months ended September 30, 2020 compared to the prior year was primarily due to an increase in the tax benefit for research and development credits in which the research and development credit remained consistent on a gross basis compared to the prior year while the annualized estimated pretax book income decreased. This benefit was partially offset by higher nondeductible officer’s compensation.

The provision for income taxes in the six months ended September 30, 2020 was $318, or an effective tax rate of 3.2%. The provision for income taxes in the six months ended September 30, 2019 was $129, or an effective tax rate of 1.7%. The increase in the effective tax rate for the six months ended September 30, 2020 compared to the prior year was primarily due to the increase of nondeductible stock option tax expense.

The deferred tax assets and liabilities are presented net in the accompanying condensed consolidated balance sheets as noncurrent. We expect to receive the full benefit of the deferred tax assets recorded, with the exception of certain state credits and state net operating loss carryforwards, for which we have recorded a valuation allowance.

Uncertain tax positions

We had unrecognized tax benefits of $4,748 and $4,192 related to various federal, state and local income tax matters as of September 30, 2020 and March 31, 2020, respectively. The unrecognized benefits consisted of liabilities of $1,103 and $1,203 and reserves against deferred tax assets of $3,645 and $2,989 as of September 30, 2020 and March 31, 2020, respectively. If recognized, this amount would reduce our effective tax rate.

We are no longer subject to United States federal income tax examinations for tax years before fiscal year ended 2017. With a few exceptions, we are no longer subject to state or local income tax examinations for tax years before fiscal year ended 2016. We do not anticipate the total unrecognized tax benefits to significantly change due to the settlement of audits or the expiration of statute of limitations within the next twelve months.

The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), signed into law on March 27, 2020, has resulted in significant changes to the U.S. federal corporate tax law. Additionally, several state and foreign jurisdictions have enacted additional legislation and or comply with federal changes. We have considered the applicable tax law changes and recognized the impact in our quarterly income tax provision, as applicable.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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