Note 2 - Significant Accounting Policies	3 Months Ended
Mar. 31, 2020
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2. Significant Accounting Policies There have been no changes in the Company’s significant accounting policies for the three months ended March 31, 2020, as compared to the significant accounting policies described in its 2019 Annual Report, except as described below. Recent Accounting Pronouncements Recent Accounting Pronouncements Adopted in 2020 In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13 Financial Instruments - Credit Losses, Measurement of Credit Losses on Financial Instruments, which changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net earnings. The Company adopted this ASU as of January 1, 2020. The adoption of the new standard did not have a material impact on the Company's condensed consolidated financial statements as current processes for estimating expected credit losses for trade receivables align with the expected credit loss model. The Company estimates its allowance for credit losses based on historical collection trends, the age of outstanding receivables, geographical location of the customer, existing economic conditions and reasonable forecasts, If events or changes in circumstances indicate that specific receivable balances may be impaired, further consideration is given to the collectability of those balances and the allowance is adjusted accordingly. Recent Accounting Pronouncements Yet to be Adopted In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes”. The Accounting Standards Codification ("ASC") aims to identify, evaluate, and improve areas of GAAP for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to users of financial statements. The Company is still assessing the impact of this pronouncement to the financial statements.

Note 2 - Significant Accounting Policies

3 Months Ended

Mar. 31, 2020

Significant Accounting Policies [Text Block]

Note 2. Significant Accounting Policies

There have been no changes in the Company’s significant accounting policies for the three months ended March 31, 2020, as compared to the significant accounting policies described in its 2019 Annual Report, except as described below.

Recent Accounting Pronouncements

Recent Accounting Pronouncements Adopted in 2020

In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13 Financial Instruments - Credit Losses, Measurement of Credit Losses on Financial Instruments, which changes the way entities measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net earnings. The Company adopted this ASU as of January 1, 2020. The adoption of the new standard did not have a material impact on the Company's condensed consolidated financial statements as current processes for estimating expected credit losses for trade receivables align with the expected credit loss model. The Company estimates its allowance for credit losses based on historical collection trends, the age of outstanding receivables, geographical location of the customer, existing economic conditions and reasonable forecasts, If events or changes in circumstances indicate that specific receivable balances may be impaired, further consideration is given to the collectability of those balances and the allowance is adjusted accordingly.

Recent Accounting Pronouncements Yet to be Adopted

In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes”. The Accounting Standards Codification ("ASC") aims to identify, evaluate, and improve areas of GAAP for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to users of financial statements. The Company is still assessing the impact of this pronouncement to the financial statements.