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RESERVES | 12 Months Ended
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Dec. 31, 2012
RESERVES |
RESERVES | 13. RESERVES Allowance for doubtful accounts and reserves for environmental liability for 2012 and 2011 are as follows:
Description |  | Balance at Beginning of Period |  | Additions |  | Deductions |  | Balance at End of Period |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|  | (in thousands) |
Allowance for Doubtful Accounts |  |  |  |  |  |  |  |  |  |  |  |  |
2012 |  | $ | 519 |  | $ | 212 |  | $ | (469 | ) | $ | 262 |
2011 |  | $ | 460 |  | $ | 90 |  | $ | (31 | ) | $ | 519 |
Description |  | Balance at Beginning of Period |  | Additions |  | Deductions |  | Balance at End of Period |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|  | (in thousands) |
Reserve for Environmental Liability |  |  |  |  |  |  |  |  |  |  |  |  |
2012 |  | $ | 866 |  | $ | — |  | $ | (191 | ) | $ | 675 |
2011 |  | $ | 1,187 |  | $ | 4 |  | $ | (325 | ) | $ | 866 |

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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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