Note 9 Borrowing and Deferred Payment Arrangements (Narratives) (Details)	9 Months Ended	3 Months Ended
	Dec. 31, 2013 USD ($) N	Dec. 31, 2013 IKB Deutshe Industriebank Loan Payable [Member] USD ($)	Dec. 31, 2013 IKB Deutshe Industriebank Loan Payable [Member] EUR (€)	Dec. 31, 2013 Minimum [Member] IKB Deutshe Industriebank Loan Payable [Member]	Dec. 31, 2013 Maximum [Member] IKB Deutshe Industriebank Loan Payable [Member]	Dec. 31, 2013 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] USD ($)	Dec. 31, 2013 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] Minimum [Member]	Dec. 31, 2013 Bank of West Amended and Restated Credit Agreement December 6 2013 [Member] Maximum [Member]
Acquisition Deferred Payments [Abstract]
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Total	$ 30,000,000
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Each Installment	15,000,000
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Number of Installment Payments	2
Business Acquisition, Cost of Acquired Entity, Due Date of First Installment Payment	Jun. 27, 2014
Business Acquisition, Cost of Acquired Entity, Due Date of Second Installment Payment	Dec. 31, 2014
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Description of Variable Rate Basis	six-month LIBOR
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Basis Spread on Variable Rate	3.00%
Business Acquisition, Cost of Acquired Entity, Deferred Payments, Interest Rate at Period End	3.42%
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						15,000,000
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
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		230,000	167,000
Long-term Debt, Gross		$ 6,200,000	€ 4,500,000
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 at Period End		2.69%	2.69%