Consolidated Statements of Income (not audited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Income tax expense (benefit) on income (loss) from discontinued operation	$ 14	$ (168)	$ 114	$ (2,873)
Income tax (benefit) expense on impairment				0
Income tax (benefit) expense on gain (loss) from disposition		$ (43)		$ 4,493