Consolidated Statements of Changes in Shareholders' Equity - Unaudited (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Dividends paid or accrued per share (in dollars per share)	$ 0.25	$ 0.22
Retained Earnings
Dividends paid or accrued per share (in dollars per share)	$ 0.25	$ 0.22
Accumulated Other Comprehensive Loss
Other comprehensive loss, tax expense	$ 1,125	$ 1

Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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