Note 3 - Earnings Per Common Share (EPS) (Details Textual) - Share-based Payment Arrangement, Option [Member] - $ / shares	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Antidilutive Securities Excluded from Computation Of Earnings Per Share Amount Based on Net Income Position (in shares)	17,500	16,000	17,500	16,000
Share Based Compensation Arrangement by Share Based Payment Award Options With AntiDilutive Effect Weighted Average Exercise Price Based on Net Income Position (in dollars per share)	$ 6.97	$ 12.17	$ 6.97	$ 12.17

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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