Severance, Impairment And Other Charges (Narrative) (Details) - USD ($)	3 Months Ended			15 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Jul. 31, 2017
Restructuring Cost and Reserve [Line Items]
Headcount reduction			11.00%
Inventory write-off	$ (14,000)	$ 397,000		$ 293,000
Expected restructuring costs	4,000,000			4,000,000
Restructuring costs incurred to date	3,551,000			$ 3,551,000
Restructuring epense (income)	$ 4,000	114,000
Restructuring payment period	8 months
U.S. [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring epense (income)		110,000
China [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring epense (income)		82,000
Germany [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring epense (income)		$ (78,000)
3CEMS [Member] | Loss on Purchase Commitment [Member]
Restructuring Cost and Reserve [Line Items]
Accrual related to settlement					$ 1,000,000