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Selected Quarterly Financial Data (Unaudited) (Tables)
 12 Months Ended
Jan. 28, 2018
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Quarterly Financial Information
The following tables set forth the Company’s Statements of Income data for each of the eight quarterly periods ended January 28, 2018, as well as that data expressed as a percentage of the Company’s net sales for the quarters presented. The sum of quarterly per share amounts may differ from year to date amounts due to rounding. In the third quarter of fiscal year 2017, the Company recognized a gain of $25.5 million on the disposition of assets related to the divestiture of Snowbush IP to Rambus. This gain is presented in "Operating income."
Selected Quarterly Financial Data (Unaudited)
 
Fiscal Year 2018
 
Fiscal Year 2017
 
Quarters Ended
 
Quarters Ended
(in thousands, except per share amounts)
January 28,
2018
 
October 29,
2017
 
July 30,
2017
 
April 30,
2017
 
January 29,
2017
 
October 30,
2016
 
July 31,
2016
 
May 1,
2016
Net sales
$
140,614

 
$
150,304

 
$
153,127

 
$
143,802

 
$
140,031

 
$
137,185

 
$
135,911

 
$
131,145

Gross profit
85,401

 
89,419

 
92,236

 
84,915

 
83,498

 
81,065

 
81,775

 
78,524

Operating income
14,009

 
17,579

 
18,892

 
18,256

 
15,288

 
39,099

 
16,427

 
13,267

Net (loss) income
$
(1,297
)
 
$
13,338

 
$
12,564

 
$
11,821

 
$
8,020

 
$
30,776

 
$
8,978

 
$
6,887

Earnings per share:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
$
(0.02
)
 
$
0.20

 
$
0.19

 
$
0.18

 
$
0.12

 
$
0.47

 
$
0.14

 
$
0.11

Diluted
$
(0.02
)
 
$
0.20

 
$
0.19

 
$
0.18

 
$
0.12

 
$
0.46

 
$
0.14

 
$
0.11

Weighted average number of shares used in computing earnings per share:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
66,310

 
66,194

 
65,763

 
65,839

 
65,716

 
65,549

 
65,299

 
65,144

Diluted
66,310

 
67,817

 
67,470

 
67,376

 
66,757

 
66,206

 
65,905

 
65,552