Note 4 - Earnings Per Common Share (EPS) (Details Textual) - Share-based Payment Arrangement, Option [Member] - $ / shares	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Antidilutive Securities Excluded from Computation Of Earnings Per Share Amount Based on Net Income Position	18,000	18,168
Share Based Compensation Arrangement by Share Based Payment Award Options With AntiDilutive Effect Weighted Average Exercise Price Based on Net Income Position	$ 13.22	$ 13.81

Based on the Company's net income position, securities that would remain anti-dilutive and be excluded as part of the weighted average common and common equivalent shares outstanding.

No definition available.

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