Note 2 Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2014

Accounting Policies [Abstract]

Schedule of Allowance for Accounts Receivable, Ship and Debit [Table Text Block]

Balance March 31, 2011		$	1,400
	Additions		5,858
	Deductions		(6,157)
Balance March 31, 2012			1,101
	Additions		5,842
	Deductions		(5,547)
Balance March 31, 2013			1,396
	Additions		4,757
	Deductions		(5,082)
Balance March 31, 2014		$	1,071

Schedule of Excess Inventory Reserve [Table Text Block]

Balance at March 31, 2011		$	29,436
	Utilization or sale		(2,543)
	Scrap		(2,313)
	Additional accrual		3,921
	Foreign currency translation adjustments		(363)
Balance at March 31, 2012			28,138
	Utilization or sale		(2,242)
	Scrap		(3,662)
	Additional accrual		3,385
	Foreign currency translation adjustments		(330)
Balance at March 31, 2013			25,289
	Utilization or sale		(1,579)
	Scrap		(3,422)
	Additional accrual		3,503
	Foreign currency translation adjustments		513
Balance at March 31, 2014		$	24,304