Note 3 - Revenue Recognition - Remaining Performance Obligations 2 (Details)
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Aug. 31, 2020
USD ($)
|
| Revenue, remaining performance obligation, amount |
$ 149,195
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-09-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 22,944
|
[1] |
| Revenue, remaining performance obligation, period (Year) |
182 days
|
[1] |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-12-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 35,610
|
|
| Revenue, remaining performance obligation, period (Year) |
1 year
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-12-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 20,039
|
|
| Revenue, remaining performance obligation, period (Year) |
1 year
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-12-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 15,345
|
|
| Revenue, remaining performance obligation, period (Year) |
1 year
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-12-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 14,964
|
|
| Revenue, remaining performance obligation, period (Year) |
1 year
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-12-01 |
|
|
| Revenue, remaining performance obligation, amount |
$ 40,293
|
|
| Revenue, remaining performance obligation, period (Year) |
1 year
|
|
|
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