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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | Schedule II - Valuation and Qualifying Accounts Years ended December 31, 2014, 2013, and 2012 (In Thousands)
Description (1) |  | Balance at Beginning of Year |  |  | Additions- Charges to (Recovery of) Costs and Expenses |  |  | Deductions- Write- offs/Costs Incurred |  |  | Balance at End of Year |
Accounts receivable - allowance for doubtful accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 |  | $ | 827 |  |  | $ | 134 |  |  | $ | 135 |  |  | $ | 826 |
2013 |  | $ | 636 |  |  | $ | 478 |  |  | $ | 287 |  |  | $ | 827 |
2012 |  | $ | 955 |  |  | $ | (214 | ) |  | $ | 105 |  |  | $ | 636 |
Inventory-reserve for slow-moving items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 |  | $ | 1,389 |  |  | $ | 325 |  |  | $ | 61 |  |  | $ | 1,653 |
2013 |  | $ | 1,818 |  |  | $ | 249 |  |  | $ | 678 |  |  | $ | 1,389 |
2012 |  | $ | 1,767 |  |  | $ | 181 |  |  | $ | 130 |  |  | $ | 1,818 |
Supplies-reserve for slow-moving items: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 |  | $ | 721 |  |  | $ | 379 |  |  | $ | 172 |  |  | $ | 928 |
2013 |  | $ | 722 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 721 |
2012 |  | $ | 899 |  |  | $ | 12 |  |  | $ | 189 |  |  | $ | 722 |
Notes receivable - allowance for doubtful accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
2013 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
2012 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
Deferred tax assets - valuation allowance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 |  | $ | 298 |  |  | $ | — |  |  | $ | 6 |  |  | $ | 292 |
2013 |  | $ | 273 |  |  | $ | 25 |  |  | $ | — |  |  | $ | 298 |
2012 |  | $ | 344 |  |  | $ | — |  |  | $ | 71 |  |  | $ | 273 |
(1) | Deducted in the consolidated balance sheet from the related assets to which the reserve applies.
Other valuation and qualifying accounts are detailed in our notes to consolidated financial statements.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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