Significant Customer and Other Information (Details)	3 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2016
Sales [Member]
Concentration Risk [Line Items]
Concentration risk percentage	100.00%	100.00%
Sales [Member] | Rotating Electrical Products [Member]
Concentration Risk [Line Items]
Concentration risk percentage	72.00%	77.00%
Sales [Member] | Wheel Hub Products [Member]
Concentration Risk [Line Items]
Concentration risk percentage	22.00%	18.00%
Sales [Member] | Brake Master Cylinders Products [Member]
Concentration Risk [Line Items]
Concentration risk percentage	6.00%	5.00%
Sales [Member] | Customer A [Member]
Concentration Risk [Line Items]
Concentration risk percentage	52.00%	50.00%
Sales [Member] | Customer B [Member]
Concentration Risk [Line Items]
Concentration risk percentage	14.00%	20.00%
Sales [Member] | Customer C [Member]
Concentration Risk [Line Items]
Concentration risk percentage	21.00%	17.00%
Accounts Receivable - Trade [Member] | Customer A [Member]
Concentration Risk [Line Items]
Concentration risk percentage	39.00%		37.00%
Accounts Receivable - Trade [Member] | Customer B [Member]
Concentration Risk [Line Items]
Concentration risk percentage	15.00%		17.00%
Accounts Receivable - Trade [Member] | Customer C [Member]
Concentration Risk [Line Items]
Concentration risk percentage	14.00%		15.00%