Income Taxes	9 Months Ended
Sep. 30, 2021
Income Taxes
Note 4. Income Taxes	Note 4: Income taxes We recognized income tax expense of $319,000 and $738,000 for the three and nine-month periods ended September 30, 2021, respectively, compared to $283,000 and $593,000 during the same periods of 2020. At the end of each interim period, we estimate the effective tax rate we expect to be applicable for the full fiscal year and this rate is applied to our results for the year-to-date period, and then adjusted for any discrete period items. For the three and nine-month periods ended September 30, 2021, the variance between the Company’s effective tax rate and the U.S. statutory rate of 21% is primarily attributable to state income tax, partially offset by an excess stock-based compensation benefit, as well as foreign statutory tax rate differentials.

- 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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