Accrued Escrow Obligations (Details) - USD ($) $ in Millions			1 Months Ended
	Jun. 25, 2014	Apr. 07, 2014	Dec. 31, 2016	Aug. 31, 2015	Jul. 31, 2014
Advance Tooling Concepts
Purchase price for the acquisition
Aggregate purchase price		$ 24.3
Cash paid		21.9
Common stock placed in escrow, value		$ 2.4
Number of shares issued and placed into escrow		233,788
Escrow period		12 months
Reduction in escrow due to working capital adjustments					$ 0.7
Kecy
Purchase price for the acquisition
Aggregate purchase price	$ 26.8
Cash paid	24.2
Common stock placed in escrow, value	$ 2.6
Number of shares issued and placed into escrow	172,450			499,176
Escrow period	18 months
Liability to settle escrow			$ 2.2