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Note G - Economic Dependency (Tables) | 6 Months Ended
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Dec. 31, 2021
Supplier Concentration Risk [Member] |
Notes Tables |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended December 31, |  |  | Six Months Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Supplier 1 |  | $ | 4,485 |  |  |  | 6,412 |  |  | $ | 7,854 |  |  |  | 9,787 |
|  | $ | 4,485 |  |  |  | 6,412 |  |  | $ | 7,854 |  |  |  | 9,787 |
Customer Concentration Risk [Member] |
Notes Tables |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three Months Ended December 31, |  |  | Six Months Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Customer 1 |  | $ | 12,966 |  |  | $ | 24,827 |  |  | $ | 26,264 |  |  | $ | 48,785 |
Customer 2 |  |  | 8,595 |  |  |  | 8,910 |  |  |  | 15,988 |  |  |  | 11,716 |
Customer 3 |  |  | 4,773 |  |  | (a) |  |  |  | 9,121 |  |  | (a) |
|  | $ | 26,334 |  |  | $ | 33,737 |  |  | $ | 51,373 |  |  | $ | 60,501 |

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