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Quarterly Results (Unaudited) (Tables)
 12 Months Ended
Jan. 31, 2015
Quarterly Financial Information Disclosure [Abstract]  
Schedule of quarterly results
The Company’s quarterly results for the years ended January 31, 2015 and 2014, as adjusted, are summarized as follows (in thousands, except per share data):
 
Q1
 
Q2
 
Q3
 
Q4
Year ended January 31, 2015
 
 
 
 
 
 
 
Net sales*
$
23,383

 
$
53,042

 
$
62,273

 
$
25,354

Gross profit*
8,030

 
20,696

 
20,672

 
6,000

Net (loss) income
(3,855
)
 
5,203

 
4,632

 
(5,131
)
Per common share
 
 
 
 
 
 
 
Net (loss) income**
 
 
 
 
 
 
 
Basic
$
(0.26
)
 
$
0.35

 
$
0.31

 
$
(0.35
)
Assuming dilution
(0.26
)
 
0.35

 
0.31

 
(0.35
)
Year ended January 31, 2014
 
 
 
 
 
 
 
Net sales*
$
19,713

 
$
56,794

 
$
59,055

 
$
19,480

Gross profit*
6,232

 
21,447

 
20,762

 
4,113

Net (loss) income
(4,447
)
 
6,210

 
3,408

 
(6,901
)
Per common share
 
 
 
 
 
 
 
Net (loss) income**
 
 
 
 
 
 
 
Basic
$
(0.31
)
 
$
0.43

 
$
0.23

 
$
(0.47
)
Assuming dilution
(0.31
)
 
0.42

 
0.23

 
(0.47
)
 ______________________________
*
The Company revised the presentation of previously reported amounts to be consistent with the presentation for the year ended January 31, 2015. The changes resulted in decreases to net sales, gross margin and selling, general, and administrative expenses for the quarters ended January 31, 2015 and 2014, respectively.  
** Net loss per share was calculated based on basic shares outstanding due to the anti-dilutive effect on the inclusion of common stock equivalent shares.