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Summary of Business and Significant Accounting Policies (Tables)
 12 Months Ended
Jan. 31, 2018
Accounting Policies [Abstract]  
Schedule of Inventory, Net
The following table presents an updated breakdown of the Company’s net inventory (in thousands) as of January 31, 2018 and 2017:
 
 
January 31,
 
 
2018
 
2017
 Finished goods
 
13,054

 
11,174

 WIP
 
16,627

 
13,486

 Raw materials
 
12,376

 
11,029

 Inventories, net
 
42,057

 
35,689
Depreciation and amortization computed on the straight-line method for financial reporting purposes based upon estimated useful lives
Property, plant and equipment are stated at cost, less accumulated depreciation. Depreciation and amortization are computed on the straight-line method for financial reporting purposes based upon the following estimated useful lives:
Land improvements
5 to 25 years
Buildings and building improvements
5 to 40 years
Machinery and equipment
3 to 10 years
Leasehold improvements
shorter of lease or useful life
Asset retirement obligations related to leased manufacturing facilities
 
January 31,
 
2018
 
2017
Balance at beginning of period
$
590,000

 
$
581,000

Decrease in obligation
(425,000
)
 
—

Accretion expense
5,000

 
9,000

Balance at end of period
$
170,000

 
$
590,000
Computation of basic and diluted loss per share
The following table sets forth the computation of basic and diluted income per share:
In thousands, except per share data
 
2018
 
2017
 
2016
Numerator
 
 
 
 
 
 
Net (loss) income
 
$
(3,209
)
 
$
22,760

 
$
4,549

Denominator
 
 
 
 
 
 
Weighted-average shares — basic
 
15,244

 
15,067

 
14,914

Dilutive effect of equity incentive plans
 
—

 
199

 
204

Weighted-average shares — diluted (a)
 
15,244

 
15,266

 
15,118

Net (loss) income per common share
 
 
 
 
 
 
Basic
 
$
(0.21
)
 
$
1.51

 
$
0.31

Diluted
 
(0.21
)
 
1.49

 
0.30
Schedule of Accumulated Other Comprehensive Income (Loss)
The following table summarizes the changes in accumulated balances of other comprehensive income (loss) for the year ended January 31, 2018 and 2017:

 
 
January 31,
(in thousands)
 
2018
 
2017
Balance as of beginning of year
 
$
(11,394
)
 
$
(14,330
)
 
 
 
 
 
Other comprehensive income before reclassifications
 
1,180

 
1,608

Amounts reclassified from AOCI
 
955

 
1,328

Net current period other comprehensive income
 
2,135

 
2,936

 
 
 
 
 
Balance as of end of year
 
$
(9,259
)
 
$
(11,394
)
 
 
 
 
 

The reclassifications out of accumulated other comprehensive income (loss) of $955,000 and $1,328,000 for the years ended January 31, 2018 and 2017, respectively, related to amortization of actuarial losses.