Note 4 - Supplemental Financial Information (Tables)

3 Months Ended

Apr. 29, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	April 29 , 201 7		January 28 , 201 7
Wafers and other purchased materials	$	10,944	$	8,595
Work-in-process		3,025		2,780
Finished goods		4,896		6,772
Total inventory	$	18,865	$	18,147

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	April 29 , 201 7		January 28 , 201 7
Prepayments for taxes	$	3,444	$	3,421
Non-operating receivable		742		955
Prepayments for royalties		905		776
Other current assets		2,962		2,865
Total prepaid expenses and other current assets	$	8,053	$	8,017

Property, Plant and Equipment [Table Text Block]

	Estimated Useful Lives ( Y ears)				April 29 , 201 7			January 28 , 201 7
Software		3	-	5	$	49,999		$	49,915
Mask sets			3			21,255			18,209
Equipment			3			8,021			7,719
Office equipment and furniture		3	-	5		7,918			7,857
Leasehold improvements		1	-	5		2,129			2,108
Total						89,322			85,808
Less: Accumulated depreciation and amortization						(69,942	)		(67,285	)
Total software, equipment and leasehold improvements, net					$	19,380		$	18,523

Schedule of Accrued Liabilities [Table Text Block]

	April 29 , 201 7		January 28 , 201 7
License fees	$	4,669	$	5,578
Income taxes payable, current portion		2,533		2,094
Rebates		1,852		1,585
Royalties		1,713		1,378
Warranty		727		783
Deferred revenue		460		350
Other accrued liabilities		3,409		1,839
Total accrued liabilities	$	15,363	$	13,607

Other Current Liabilities [Table Text Block]

	Three months ended April 29, 2017
Beginning balance	$	1,585
Charged as a reduction of revenue		725
Payments		(458	)
Ending balance	$	1,852