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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2011
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | Schedule II — Valuation and Qualifying Accounts Years ended December 31, 2011, 2010, and 2009 (In Thousands)
|  |  |  |  |  | Additions- |  |  |  |  |  |  |
|  | Balance at |  |  | Charges to |  |  | Deductions- |  |  | Balance at |
|  | Beginning of |  |  | Costs and |  |  | Write-offs/ |  |  | End of |
Description |  | Year |  |  | Expenses |  |  | Costs Incurred |  |  | Year |
Accounts receivable — allowance for doubtful accounts (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2011 |  | $ | 636 |  |  | $ | 347 |  |  | $ | 28 |  |  | $ | 955 |
2010 |  | $ | 676 |  |  | $ | 145 |  |  | $ | 185 |  |  | $ | 636 |
2009 |  | $ | 729 |  |  | $ | 90 |  |  | $ | 143 |  |  | $ | 676 |
Inventory-reserve for slow-moving items (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2011 |  | $ | 1,616 |  |  | $ | 751 |  |  | $ | 600 |  |  | $ | 1,767 |
2010 |  | $ | 1,198 |  |  | $ | 485 |  |  | $ | 67 |  |  | $ | 1,616 |
2009 |  | $ | 514 |  |  | $ | 745 |  |  | $ | 61 |  |  | $ | 1,198 |
Notes receivable — allowance for doubtful accounts (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2011 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
2010 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
2009 |  | $ | 970 |  |  | $ | — |  |  | $ | — |  |  | $ | 970 |
Deferred tax assets — valuation allowance (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2011 |  | $ | 310 |  |  | $ | 34 |  |  | $ | — |  |  | $ | 344 |
2010 |  | $ | 358 |  |  | $ | — |  |  | $ | 48 |  |  | $ | 310 |
2009 |  | $ | 268 |  |  | $ | 90 |  |  | $ | — |  |  | $ | 358 |
(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 SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: 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=6881521&loc=d3e24092-122690 + Details
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