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REVENUE RECOGNITION (Tables) | 9 Months Ended
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Jun. 30, 2021
REVENUE RECOGNITION |
Schedule of changes in contract assets and liabilities | The following table presents changes in the Company’s contract assets and contract liabilities for the nine months ended June 30, 2021. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance at | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Balance at
​ | ​ | September 30, | ​ | ​ | ​ | ​ | ​ | ​ | ​ | June 30,
​ |  | 2020 |  | Additions |  | Deductions |  | 2021
Contract Assets: Unbilled receivables | ​ | $ | 1,879 | ​ | $ | 3,963 | ​ | $ | (1,848) | ​ | $ | 3,994
Contract liabilities: Customer advances | ​ | $ | 11,392 | ​ | $ | 125,225 | ​ | $ | (116,648) | ​ | $ | 19,969

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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- References No definition available. + Details
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