Note 4 - Balance Sheet Details (Tables)

6 Months Ended

Sep. 27, 2015

Disclosure Text Block Supplement [Abstract]

Schedule of Inventory, Current [Table Text Block]

	September 27, 2015		March 29, 2015
Work-in-process and raw materials	$	17,734	$	16,789
Finished goods		14,664		13,978
Total inventories	$	32,398	$	30,767

Property, Plant and Equipment [Table Text Block]

	September 27, 2015			March 29, 2015
Land	$	6,660		$	6,660
Building		17,413			17,431
Machinery and equipment		41,228			41,449
Software and licenses		22,592			22,044
Property, plant and equipment, total		87,893			87,584
Accumulated depreciation and amortization		(64,566	)		(61,507	)
Total property, plant and equipment, net	$	23,327		$	26,077

Other Current Liabilities [Table Text Block]

	September 27, 2015		March 29, 2015
Short-term lease financing obligations	$	3,796	$	3,834
Accrued retention bonus		3,176		2,951
Provision for dispute		2,500		—
Purchase consideration holdback		1,006		1,006
Accrued manufacturing expenses, royalties and licenses		720		1,122
Accrued legal and professional services		676		982
Accrued sales and marketing expenses		629		686
Accrued restructuring charges and exit costs		169		982
Deferred tax liability		—		7,021
Other current liabilities		2,634		2,703
Total other current liabilities	$	15,306	$	21,287

Other Noncurrent Liabilities [Table Text Block]

	September 27, 2015		March 29, 2015
Long-term taxes payable	$	3,157	$	4,351
Other		207		42
Total other non-current obligations	$	3,364	$	4,393