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Note G - Economic Dependency (Tables) | 9 Months Ended
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Mar. 31, 2021
Supplier Concentration Risk [Member] |
Notes Tables |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended March 31, |  |  | Nine Months Ended March 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Supplier 1 |  | $ | 5,978 |  |  |  | 1,930 |  |  | $ | 15,765 |  |  | (a) |
|  | $ | 5,978 |  |  |  | 1,930 |  |  | $ | 15,765 |  |  |  | — |
Customer Concentration Risk [Member] |
Notes Tables |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended March 31, |  |  | Nine Months Ended March 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Customer 1 |  | $ | 23,215 |  |  | $ | 9,271 |  |  | $ | 72,001 |  |  | $ | 36,047 |
Customer 2 |  |  | 5,811 |  |  | (a) |  |  | (a) |  |  | (a) |
Customer 3 |  | (a) |  |  |  | 7,599 |  |  |  | 16,288 |  |  |  | 17,108 |
|  | $ | 29,026 |  |  | $ | 16,870 |  |  | $ | 88,289 |  |  | $ | 53,155 |

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