Consolidated Statements of Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.52	$ 0.26	$ 0.21
Loss in respect of derivative instruments designated for cash flow hedge, related tax	$ 54	$ 56	$ 554
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax	0	0	0
Amortization of unrealized gains, tax	$ 57	$ 73	$ 87
Cash dividend declared, per share (in dollars per share)	$ 0.52	$ 0.26	$ 0.21