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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2019
Accounting Policies [Abstract] |
Schedule of accounts receivable and allowance for doubtful accounts |
|  |  | Nine Months Ended September 30, 2019 and Year Ended December 31, 2018
September 30, 2019 |  | Balance at Beginning of Period |  | Charged to Revenue |  | Charged to Costs and Expenses |  | Write-offs |  | Utilization |  | Balance at End of Period
Allowance for doubtful accounts |  | $ | 1,175 |  | $ | - |  | $ | 1,331 |  | $ | - |  | $ | - |  | $ | 2,506
Allowance for service changes and cancellations |  |  | 2,311 |  |  | 6,536 |  |  | - |  |  | - |  |  | (3,772) |  |  | 5,075
|  |  | 3,486 |  |  | 6,536 |  |  | 1,331 |  |  | - |  |  | (3,772) |  |  | 7,581
December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 590 |  | $ | - |  | $ | 824 |  | $ | (239) |  | $ | - |  | $ | 1,175
Allowance for service changes and cancellations |  |  | 500 |  |  | 3,414 |  |  | - |  |  | - |  |  | (1,603) |  |  | 2,311
|  |  | 1,090 |  |  | 3,414 |  |  | 824 |  |  | (239) |  |  | (1,603) |  |  | 3,486

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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