Taxes (Details ) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current income tax expense:
Foreign	$ 1,331	$ 778	$ 946
Federal	4	0	(24)
State and local	1	22	13
Current income tax expense (benefit)	1,336	800	935
Deferred income tax expense (benefit):
Foreign	(133)	(413)	(493)
Federal	0	19	4,530
State and local	0	0	479
Deferred income tax expense (benefit)	(157)	(383)	4,617
Provision for income taxes	$ 1,203	$ 406	$ 5,451

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