Note 17 - Earnings Per Share ("EPS") - Basic and Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Basic weighted average common shares outstanding (in shares)									14,121	14,442	14,575
Effect of dilutive securities:
Stock options, SARs, RSAs and RSUs (in shares)									253	247	493
Diluted shares used in the calculation of earnings per share (in shares)	14,621	14,387	14,088	14,314	14,299	14,377	14,915	14,679	14,374	14,689	15,068

The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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- References

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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-Name Accounting Standards Codification
-Topic 260
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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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