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Warranty Accrual (Tables) | 6 Months Ended
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Jul. 31, 2013
Commitments and Contingencies Disclosure [Abstract] |
Warranty claim activity | The following is a summary of the Company’s warranty claim activity for the three months and six months ended July 31, 2013 and 2012 (in thousands):
| Three Months Ended |  | Six Months Ended
| 7/31/2013 | 7/31/2012 |  | 7/31/2013 | 7/31/2012
| (In thousands)
Beginning accrued warranty balance | $ | 1,000 |  | $ | 1,400 |  |  | $ | 1,000 |  | $ | 1,400 |
Provision | 75 |  | 88 |  |  | 216 |  | 199 |
Costs incurred | (75 | ) | (188 | ) |  | (216 | ) | (299 | )
Ending accrued warranty balance | $ | 1,000 |  | $ | 1,300 |  |  | $ | 1,000 |  | $ | 1,300 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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