Debt and Other Financing Arrangements (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
2017	$ 858
2018	1,144
2019	776
2020	287
2021	30
Total long-term debt	3,095
Less current portion of long-term debt	(1,144)	$ (1,144)
Total long-term debt, net of current portion	$ 1,951	$ 2,237