Consolidated Statements of Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.23	$ 0.17
Amortization of unrealized gains, tax	$ 9	$ 14
Loss in respect of derivative instruments designated for cash flow hedge, related tax	$ 13
Cash dividend declared, per share (in dollars per share)	$ 0.23	$ 0.17

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

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-Topic 505
-SubTopic 10
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-Name Accounting Standards Codification
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