Summary of Significant Accounting Policies (Long Lived Assets) (Details)	12 Months Ended
	Mar. 31, 2018 USD ($) Segment
Property, Plant and Equipment [Line Items]
Number of Operating Segments | Segment	2
Impairment losses on assets held and used | $	$ 0
Buildings and improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Buildings and improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful lives	39 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful lives	25 years