Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Repurchased stock (in shares)	4,938
Cash paid for common stock dividend (in usd per share)	$ 0.50	$ 0.905
Common Stock
Repurchased stock (in shares)	199,202	390,089
Exercise of stock options (in shares)		10,511

Number of share options (or share units) exercised during the current period.

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