CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parentheticals) - $ / shares	3 Months Ended
Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Issuance of common stock to non-employee directors (in shares)			5,556			5,814
Dividends paid (in dollars per share)	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18	$ 0.18
Stock Options
Exercise of stock options (in shares)				10,250

Aggregate dividends paid during the period for each share of common stock outstanding.

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