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Note 2 - Basis of Presentation and Summary of Significant Accounting Policies | 9 Months Ended
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Sep. 30, 2021
Notes to Financial Statements |
Significant Accounting Policies [Text Block] | 2. Basis of Presentation and Summary of Significant Accounting Policies: Our accompanying unaudited condensed consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the U.S. ("U.S. GAAP"). The preparation of financial statements in conformity with these accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates include acquisition purchase price allocations, the fair value of goodwill, the realization of deferred tax assets and liabilities, acquisition-related liabilities, fair value of stock-based compensation for stock options and performance share units granted, and assets and liabilities for pension and postretirement benefits. Actual results may ultimately differ from those estimates. Our condensed consolidated financial statements as of September 30, 2021 and for the three and nine months ended September 30, 2021 and 2020, in the opinion of management, include all adjustments, consisting of normal recurring items, to present fairly our financial position, results of operations, and cash flows. Our operating results for the three and nine months ended September 30, 2021 are not necessarily indicative of the results to be expected for the full year. Our condensed consolidated financial statements and related notes as of and for the three and nine months ended September 30, 2021 have been prepared on the same basis as and should be read in conjunction with our annual report on Form 10-K for the year ended December 31, 2020. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules of the SEC. We believe the disclosures made are adequate to keep the information presented from being misleading. Recent Accounting Pronouncements
Accounting Standard | Description | Effective Date | Effect on Consolidated Financial Statements or Other Significant Matters
Income Tax (Topic 740), In December 2019, FASB issued ASU No. 2019-12, "Simplifying the Accounting for Income Taxes" ("ASU No. 2019-12") | The amendments in this guidance reflect the FASB’s effort to reduce the complexity of accounting standards while maintaining or enhancing the helpfulness of information provided to financial statement users. Changes include treatment of Hybrid tax regimes, tax basis step-up in goodwill obtained in a transaction that is not a business combination, separate financial statements of legal entities not subject to tax, intraperiod tax allocation, ownership changes in investments, interim-period accounting for enacted changes in tax law, year-to-date loss limitation in interim-period tax accounting, income statement presentation of tax benefits of tax-deductible dividends, and impairment of investment in qualified affordable housing projects accounted for under the equity method. | Fiscal years beginning after December 15, 2020 with early adoption permitted. | We adopted this amendment on January 1, 2021 on a prospective basis. We evaluated ASU No. 2019-12 and determined that there was no material impact on our Condensed Consolidated Financial Statements.
Compensation-Retirement Benefits-Defined Benefit Plans - General (Subtopic 715-20), In August 2018, the FASB issued ASU No. 2018-14, "Changes to the Disclosure requirements for defined benefit plans" ("ASU No. 2018-14") | This amendment removes certain disclosures that are not considered cost beneficial and helps clarify certain required disclosures along with adding additional disclosures. This impacts employers that sponsor defined benefit pension and/or other postretirement plans. The amendment clarifies guidance in ASC 715-20-50-3 to disclose projected benefit obligation (PBO) and accumulated benefit obligation (ABO). | Fiscal years ending after December 15, 2020 with early adoption permitted. | We adopted ASU No. 2018-14 on December 31, 2020 on a retroactive basis and applied to each comparative period presented in our Consolidated Financial Statements. The adoption of ASU No. 2018-14 did not have a material impact on our Condensed Consolidated Financial Statements.

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- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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