Note 4 - Balance Sheet Details (Tables)

12 Months Ended

Mar. 29, 2015

Disclosure Text Block Supplement [Abstract]

Property, Plant and Equipment [Table Text Block]

	March 29, 2015			March 30, 2014
Land	$	6,660		$	6,660
Building		17,431			16,787
Machinery and equipment		41,449			40,675
Software and licenses		22,044			17,549
Property, plant and equipment, total		87,584			81,671
Accumulated depreciation and amortization		(61,507	)		(60,391	)
Total property, plant and equipment, net	$	26,077		$	21,280

Schedule of Inventory, Current [Table Text Block]

	March 29, 2015		March 30, 2014
Work-in-progress and raw materials	$	16,789	$	13,555
Finished goods		13,978		15,427
Total inventories	$	30,767	$	28,982

Other Current Liabilities [Table Text Block]

	March 29, 2015		March 30, 2014
Deferred tax liability	$	7,021	$	—
Short-term lease financing obligations		3,834		2,671
Accrued retention bonus		2,951		217
Accrued manufacturing expenses, royalties and licenses		1,122		1,639
Purchase consideration holdback		1,006		1,256
Accrued legal and professional services		982		1,453
Accrued restructuring charges and exit costs		982		2,214
Accrued sales and marketing expenses		686		666
Other current liabilities		2,703		1,254
Total other current liabilities	$	21,287	$	11,370

Other Noncurrent Liabilities [Table Text Block]

	March 29, 2015		March 30, 2014
Long-term taxes payable		4,351		794
Deferred tax liability		42		614
Fair value of earn out liability – long-term		—		3,853
Accrued retention bonus		—		1,181
Accrued restructuring charges and exit costs		—		155
Other		—		29
Total other non-current obligations	$	4,393	$	6,626