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Summary of Business and Significant Accounting Policies (Tables) | 12 Months Ended
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Jan. 31, 2015
Accounting Policies [Abstract] |
Depreciation and amortization computed on the straight-line method for financial reporting purposes based upon estimated useful lives | 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,
| 2015 |  | 2014
Balance at beginning of period | $ | 563,000 |  |  | $ | 554,000 |
Decrease in obligation | — |  |  | — |
Accretion expense | 9,000 |  |  | 9,000 |
Balance at end of period | $ | 572,000 |  |  | $ | 563,000 |
Computation of basic and diluted loss per share | The following table sets forth the computation of basic and diluted income (loss) per share:
In thousands, except per share data | 2014 |  | 2013 |  | 2012
Numerator |  |  |  |  |
Net income (loss) | $ | 849 |  |  | $ | (1,730 | ) |  | $ | (3,830 | )
Denominator |  |  |  |  |
Weighted-average shares — basic | 14,756 |  |  | 14,620 |  |  | 14,387 |
Dilutive effect of equity incentive plans | 231 |  |  | — |  |  | — |
Weighted-average shares — diluted (1) | 14,987 |  |  | 14,620 |  |  | 14,387 |
Net income (loss) per common share |  |  |  |  |
Basic | $ | 0.06 |  |  | $ | (0.12 | ) |  | $ | (0.27 | )
Diluted | 0.06 |  |  | (0.12 | ) |  | (0.27 | )
___________________
(1) | For fiscal years 2013 and 2012, approximately 180,000 and 119,000 shares of common stock equivalents, respectively, were excluded in the computation of diluted net income per share, as the effect would be anti-dilutive.
Schedule of Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss), Net of Tax The following table summarizes the changes in accumulated balances of other comprehensive income (loss) for the year ended January 31, 2015 and 2014:
| January 31,
(in thousands) | 2015 |  | 2014
Balance as of beginning of year | $ | (13,980 | ) |  | $ | (15,986 | )
Other comprehensive (loss) income before reclassifications | (7,537 | ) |  | 458 |
Amounts reclassified from AOCI | 1,283 |  |  | 1,548 |
Net current period other comprehensive (loss) income | (6,254 | ) |  | 2,006 |
Balance as of end of year | $ | (20,234 | ) |  | $ | (13,980 | )

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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