Note 6 Balance Sheet Details (Tables)

12 Months Ended

Mar. 31, 2014

Balance Sheet Related Disclosures [Abstract]

Schedule of Allowance Movement [Table Text Block]

Allowances Movement (in thousands):
		Balance at Beginning of Year		Additions		Utilization		Translation Adjustments		Balance at End of Year
Allowances for accounts receivable and for doubtful accounts
	Year ended March 31, 2014	$	2,656	$	8,563	$	(8,255)	$	49	$	3,013
	Year ended March 31, 2013	$	2,473	$	10,064	$	(9,851)	$	(30)	$	2,656
	Year ended March 31, 2012	$	3,478	$	8,524	$	(9,492)	$	(37)	$	2,473

Schedule of Inventory, Current [Table Text Block]

Inventories
	Inventories consist of the following (in thousands):
		March 31,
		2014		2013
Raw materials		$	19,957	$	17,349
Work in process			44,165		41,036
Finished goods			28,906		25,444
	Total	$	93,028	$	83,829

Property, Plant and Equipment [Table Text Block]

	Property, Plant and Equipment
		Property, plant and equipment consist of the following (in thousands):
			March 31,
			2014		2013
Property and plant (useful life of 24 years to 50 years)			$	34,271	$	33,996
Equipment owned (useful life of 1 to 14 years)				107,378		97,104
Equipment capital leases (useful life of 4 years)				41,931		40,010
Leasehold improvements (useful life of up to 8 years)				1,253		917
				184,833		172,027
Accumulated depreciation				(134,264)		(120,032)
			$	50,569	$	51,995
Depreciation expense for fiscal years ended March 31, 2014, 2013 and 2012 amounted to $10.7 million, $10.2 million and $10.9 million, respectively.

Schedule of Accrued Liabilities [Table Text Block]

Accrued Expenses and Other Liabilities
	Accrued expenses and other liabilities consist of the following (in thousands):
		March 31,
		2014		2013
Uninvoiced goods and services		$	9,098	$	8,204
Compensation and benefits			6,880		5,950
Short-term installment payment obligations			30,781		-
Commission, royalties and other			3,407		2,838
	Total	$	50,166	$	16,992