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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 | VALUATION AND QUALIFYING ACCOUNTS VALUATION AND QUALIFYING ACCOUNTS Years ended December 31, 2011, 2010 and 2009
Description |  | Balance at Beginning of Period |  |  | (Credit) Charge to Costs and Expenses |  |  | Other Charges, Deductions (1) |  |  | Balance at End of Period |
Allowance for doubtful accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2011 |  | $ | 309,000 |  |  | $ | 18,000 |  |  | $ | (61,000 | ) |  | $ | 266,000 |
December 31, 2010 |  |  | 260,000 |  |  |  | 57,000 |  |  |  | (8,000 | ) |  |  | 309,000 |
December 31, 2009 |  |  | 300,000 |  |  |  | 3,000 |  |  |  | (43,000 | ) |  |  | 260,000 |
(1) | Reflects uncollectible accounts written off, net of recoveries.
Description |  | Balance at Beginning of Period |  |  | (Credit) Charge to Costs and Expenses |  |  | Other Charges, Deductions (2) |  |  | Balance at End of Period |
Inventory Reserves: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year ended: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2011 |  | $ | 5,444,000 |  |  | $ | 1,650,000 |  |  | $ | (727,000 | ) |  | $ | 6,367,000 |
December 31, 2010 |  |  | 5,943,000 |  |  |  | 1,721,000 |  |  |  | (2,220,000 | ) |  |  | 5,444,000 |
December 31, 2009 |  |  | 6,358,000 |  |  |  | 1,010,000 |  |  |  | (1,425,000 | ) |  |  | 5,943,000 |
(2) | Reflects amounts associated with inventory that have been discarded or sold.

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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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- Details
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