Subsequent Events (Narrative) (Details) - 3CEMS [Member]	1 Months Ended
	Jul. 31, 2017 item	Jun. 30, 2017 USD ($)
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of payments	4
Payment period	10 months
Loss on Purchase Commitment [Member]
Subsequent Event [Line Items]
Accruals related to settlement | $		$ 1,000,000
Loss on Purchase Commitment [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Number of payments	4
Payment period	10 months