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Summary Of Significant Accounting And Reporting Policies (Schedule Of Allowance For Doubtful Accounts) (Details) (Allowance For Doubtful Accounts [Member], USD $) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Allowance For Doubtful Accounts [Member] |  |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Beginning Balance | $ 3,400,000 |  | $ 4,300,000 |
Net Additions/(Reductions) to Costs and Expenses | (577) |  | (802,929) |
Deductions and Other Adjustments | 577 | [1] | (97,071) | [2]
Ending Balance | $ 3,400,000 |  | $ 3,400,000 |
[1] | Represents excess recoveries and other adjustments over accounts written off.
[2] | Represents excess of accounts written off over recoveries and other adjustments.

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- Definition Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability. + 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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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + 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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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + 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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