Consolidated Statements of Shareholders' Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Retained Earnings [Member]
Cash dividends declared, per share (in dollars per share)		$ (0.365)	$ (0.034)
AOCI Attributable to Parent [Member]
Cash flow hedges, tax			$ 24
Pensions, taxes			97
Cash dividends declared, per share (in dollars per share)	$ (0.39)
Cash flow hedges, tax	$ 68	$ 36
Pensions, taxes	123	59
Change in currency translation adjustment, taxes	$ 189	$ 13	$ 41

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

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