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Quarterly Results (Unaudited) (Tables)
 12 Months Ended
Jan. 31, 2013
Quarterly Financial Information Disclosure [Abstract]  
Schedule of quarterly results
The Company’s quarterly results for the years ended January 31, 2013 and 2012 as adjusted, are summarized as follows (in thousands, except per share data):
 
Q1
 
Q2
 
Q3
 
Q4
Year ended January 31, 2013
 
 
 
 
 
 
 
Net sales
$
23,668

 
$
60,392

 
$
56,642

 
$
18,154

Gross profit
6,967

 
22,867

 
19,318

 
2,400

Net (loss) income
(4,833
)
 
7,053

 
2,908

 
(8,958
)
Per common share
 
 
 
 
 
 
 
Net (loss) income (a)
 
 
 
 
 
 
 
Basic
$
(0.34
)
 
$
0.49

 
$
0.20

 
$
(0.62
)
Assuming dilution
(0.34
)
 
0.49

 
0.20

 
(0.62
)
Year ended January 31, 2012
 
 
 
 
 
 
 
Net sales
$
24,256

 
$
62,817

 
$
53,074

 
$
26,294

Gross profit
6,778

 
19,882

 
16,041

 
5,457

Net (loss) income
(5,400
)
 
2,732

 
(3,299
)
 
(7,836
)
Per common share
 
 
 
 
 
 
 
Net (loss) income (a)
 
 
 
 
 
 
 
Basic
$
(0.38
)
 
$
0.19

 
$
(0.23
)
 
$
(0.55
)
Assuming dilution
(0.38
)
 
0.19

 
(0.23
)
 
(0.55
)
 ______________________________
(a)
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.