Note 3 - Revenue Recognition (Tables)
|
9 Months Ended |
Aug. 31, 2020 |
|---|
| Notes Tables |
|
| Contract With Customer Asset and Liability, Subject to Change [Table Text Block] |
| | | August 31, 2020 | | | December 1, 2019 | | | | | | | | | | | | | Assets | | | | | | | | | | Accounts receivable | | $ | 69,744 | | | $ | 58,853 | | | Total Assets | | | 69,744 | | | | 58,853 | | | | | | | | | | | | | Liabilities | | | | | | | | | | Contract liabilities - current | | | 547,493 | | | | 622,724 | | | Contract liabilities - long-term | | | 96,100 | | | | 80,110 | | | Total Contract Liabilities | | $ | 643,593 | | | $ | 702,834 | | |
| Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
| | | Accounts
Receivable | | | Contract
Liabilities | | | | | | | | | | | | | Balance at December 1, 2019 | | $ | 58,853 | | | $ | 702,834 | | | | | | | | | | | | | Revenue Recognized | | | 422,420 | | | | (587,260 | ) | | | | | | | | | | | | Amounts (collected) or invoiced, net | | | (411,529 | ) | | | 528,019 | | | Balance at August 31, 2020 | | $ | 69,744 | | | $ | 643,593 | | |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] |
| (a) 2020 | | $ | 22,944 | | | 2021 | | $ | 35,610 | | | 2022 | | $ | 20,039 | | | 2023 | | $ | 15,345 | | | 2024 | | $ | 14,964 | | | Thereafter | | $ | 40,293 | | | Total | | $ | 149,195 | | |