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Note 4 - Revenue Recognition (Tables) | 12 Months Ended
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Sep. 30, 2019
Notes Tables |
Contract with Customer, Asset and Liability [Table Text Block] |
|  | Prepaid maintenance |
|  | agreement |
Balance at September 30, 2018 |  | $ | 93,750 |
New prepaid maintenance agreements |  |  | - |
Recognition of expense as a result of performing services |  |  | (93,750 | )
Balance at September 30, 2019 |  | $ | - |
|  | Customer deposits |  |  | Deferred revenue |  |  | Total contract liabilities |
Balance at September 30, 2018 |  | $ | 199,596 |  |  | $ | 536,458 |  |  | $ | 736,054 |
New performance obligations |  |  | 7,241,768 |  |  |  | 1,627,331 |  |  |  | 8,869,099 |
Recognition of revenue as a result of satisfying performance obligations |  |  | (2,378,273 | ) |  |  | (1,083,261 | ) |  |  | (3,461,534 | )
Effect of exchange rate on deferred revenue |  |  | - |  |  |  | (21,121 | ) |  |  | (21,121 | )
Balance at September 30, 2019 |  | $ | 5,063,091 |  |  | $ | 1,059,407 |  |  | $ | 6,122,498 |
Less: non-current portion |  |  | - |  |  |  | (550,885 | ) |  |  | (550,885 | )
Current portion at September 30, 2019 |  | $ | 5,063,091 |  |  | $ | 508,522 |  |  | $ | 5,571,613 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + 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=118956577&loc=SL49130551-203045 + Details
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