Note 9 Borrowing and Installment Payment Arrangements (Narratives) (Details)	9 Months Ended		3 Months Ended				0 Months Ended	3 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2014 Loan Payable [Member] IKB Deutshe Industriebank [Member] USD ($)	Dec. 31, 2014 Loan Payable [Member] IKB Deutshe Industriebank [Member] EUR (€)	Sep. 30, 2014 Notes Payable, Other Payables [Member] USD ($)	Jun. 30, 2014 Notes Payable, Other Payables [Member] USD ($)	Jun. 27, 2013 MCU Business [Member] USD ($) N	Dec. 31, 2014 Minimum [Member] Loan Payable [Member] IKB Deutshe Industriebank [Member]	Dec. 31, 2014 Maximum [Member] Loan Payable [Member] IKB Deutshe Industriebank [Member]	Dec. 31, 2014 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] USD ($)	Dec. 31, 2014 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] Minimum [Member]	Dec. 31, 2014 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] Maximum [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Initiation Date										Dec. 06, 2013
Line of Credit Facility, Expiration Date										Nov. 30, 2015
Line of Credit Facility, Amount Outstanding										$ 45,000,000
Line of Credit Facility, Maximum Borrowing Capacity										50,000,000
Line of Credit Facility, Basis Spread on Variable Rate											0.75%	2.50%
Line of Credit Facility, Interest Rate at Period End										1.92%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage											0.25%	0.625%
Available Credit Line for Letter of Credit										3,000,000
Line of Credit Facility, Interest Rate Description										LIBOR plus a margin, an alternative base rate plus a margin or a floating rate plus a margin
Business Acquisition [Line Items]
Business Acquisition, Cost of Acquired Entity, Installment Payments, Total							30,000,000
Business Acquisition, Cost of Acquired Entity, Installment Payments, Each Installment							15,000,000
Business Acquisition, Cost of Acquired Entity, Installment Payments, Number of Installment Payments							2
Business Acquisition, Cost of Acquired Entity, Payment Date of First Installment Payment							Jun. 26, 2014
Business Acquisition, Cost of Acquired Entity, Payment Date of Second Installment Payment							Dec. 23, 2014
Debt Instrument [Line Items]
Debt Instrument, Face Amount			12,200,000	10,000,000
Debt Instrument, Issuance Date			Jun. 10, 2005	Jun. 10, 2005
Debt Instrument, Maturity Date			Jun. 30, 2020	Jun. 30, 2020
Debt Instrument, Payment Terms			each fiscal quarter	each fiscal quarter
Debt Instrument, Description of Variable Rate Basis			three month Euribor rate	three month Euribor rate
Debt Instrument, Basis Spread on Variable Rate								0.70%	1.25%
Debt Instrument, Periodic Payment, Principal			203,000	167,000
Long-term Debt, Gross			4,500,000	3,700,000
Derivative, Inception Date			Jun. 30, 2010	Jun. 30, 2010
Derivative, Maturity Date			Jun. 30, 2015	Jun. 30, 2015
Derivative, Swaption Interest Rate			1.99%	1.99%
Debt Instrument, Interest Rate, Effective Percentage			2.69%	2.69%
Loans Assumed from Business Acquisition						723,000
Repayments of Debt	$ 914,000	$ 516,000			$ 99,000
Debt Instrument, Maturity Date, Description						from fiscal 2017 to fiscal 2021