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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) | Sep. 30, 2021 | Sep. 30, 2020
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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |
Accrued expense - other | $ 2,051,696 | $ 16,021,442
Accrued payroll | 4,586,057 | 3,771,874
Accrued interest | 12,489,012 | 2,358,273
Total | 19,126,765 | 22,151,589
Delinquent IRS and state tax liabilities | $ 3,904,720 | 3,987,596
AirSign advertising contract |  |
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |
Advertising obligations |  | 13,600,000
RedRock Outdoor Advertising, Inc. contract |  |
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES |  |
Advertising obligations |  | $ 1,400,000

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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for advertising of the entity's goods and services. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6911-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6935-107765 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e7054-107765 + Details
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