Consolidated Statements of Equity (Unaudited) (Parentheticals) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.45	$ 0.02
Cash flow hedge, tax	$ 40,000	$ 42,000
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax	0	0
Amortization of unrealized gains in respect of derivative instruments designated for cash flow hedge, related tax	$ 44,000	$ 56,000
Cash dividend declared, per share (in dollars per share)	$ 0.45	$ 0.20