Note 5 - Supplemental Financial Information (Tables)

12 Months Ended

Feb. 03, 2018

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	February 3, 2018			January 28, 2017
Wafers and other purchased materials	$	6,837		$	8,595
Work-in-process		1,197			2,780
Finished goods		6,030			6,772
Less: Assets held for sale		(11,026	)		(8,684	)
Inventory	$	3,038		$	9,463

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

	February 3, 2018			January 28, 2017
Prepayments for taxes	$	3,451		$	3,421
Non-operating receivable		100			955
Prepayments for royalties		333			776
Prepayments for inventory		-			442
Deposits		154			202
Other current assets		3,860			2,221
Less: Assets held for sale		(1,127	)		(1,139	)
Prepaid expenses and other current assets	$	6,771		$	6,878

Property, Plant and Equipment [Table Text Block]

	Estimated Useful Lives (years)				February 3, 2018			January 28, 2017
Software		3	-	5	$	44,005		$	49,915
Mask sets			3			14,207			18,209
Equipment			3			8,113			7,719
Office equipment and furniture		3	-	5		8,196			7,857
Leasehold improvements		1	-	5		2,181			2,108
Total						76,702			85,808
Less: Accumulated depreciation and amortization						(70,524	)		(67,285	)
Total software, equipment and leasehold improvements, net						6,178			18,523
Less: Assets held for sale						(1,839	)		(7,265	)
Software, equipment and leasehold improvements, net					$	4,339		$	11,258

Schedule of Accrued Liabilities [Table Text Block]

	February 3, 2018			January 28, 2017
License fees	$	3,916		$	5,578
Rebates		2,094			1,585
Restructuring		1,628			-
Income taxes payable, current portion		1,468			2,094
Settlements		1,410			-
Royalties		852			1,378
Warranties		643			783
Deferred revenue		400			350
Other accrued liabilities		2,268			1,839
Total accrued liabilities		14,679			13,607
Less: Accrued liabilities held for sale		(4,812	)		(4,762	)
Accrued liabilities	$	9,867		$	8,845

Other Current Liabilities [Table Text Block]

	February 3, 2018			January 28, 2017			January 30, 2016
Beginning balance	$	1,585		$	2,864		$	9,599
Charged as a reduction of revenue		2,345			4,121			11,724
Reversal of unclaimed rebates		-			(224	)		(1,028	)
Payments		(1,836	)		(5,176	)		(17,431	)
Ending balance		2,094			1,585			2,864
Less: Accrued rebates held for sale		(1,807	)		(1,307	)		(1,835	)
Accrued rebates	$	287		$	278		$	1,029

Other Noncurrent Liabilities [Table Text Block]

	February 3, 2018			January 28, 2017
Other long-term liabilities	$	51		$	56
Deferred rent obligations		593			769
License fees		2,525			5,400
Total long-term liabilities		3,169			6,225
Less: Other long-term liabilities held for sale		(16	)		(7	)
Other long-term liabilities	$	3,153		$	6,218