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SCHEDULE - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2011
SCHEDULE - Valuation and Qualifying Accounts |
SCHEDULE - Valuation and Qualifying Accounts |
Valuation and Qualifying Accounts
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Description |  | Balance at Beginning of Period |  | Charged to Costs and Expenses |  | Charged to other account describe |  | Deductions Describe (a) |  | Balance at end of Period |
Year ended December 31, 2011: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  |  | 482,518 |  |  | 265,807 |  |  |  |  |  | 300,206 |  |  | 448,119 |
Year ended December 31, 2010: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  |  | 475,684 |  |  | 374,597 |  |  |  |  |  | 367,763 |  |  | 482,518 |
Year ended December 31, 2009: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  |  | 460,327 |  |  | 356,686 |  |  |  |  |  | 341,329 |  |  | 475,684 |
(a) Uncollectible accounts written off

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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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