Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Reserve [Roll Forward]
Balance at beginning of period		$ 216
Charges	$ 126	119
Payments/Settlements		(303)
Balance at end of period	126	32
Termination Benefits [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period		190
Charges	126	119
Payments/Settlements		(295)
Balance at end of period	$ 126	14
Facility Costs And Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Balance at beginning of period		26
Payments/Settlements		(8)
Balance at end of period		$ 18