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Accounts Receivable and Credit Losses (Credit Quality Analysis of Financing Receivable) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Jun. 30, 2021 | Sep. 30, 2020
--- | --- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior |  | $ 12,829 | $ 22,095
2018 |  | 5,278 | 9,692
2019 |  | 5,361 | 7,339
2020 |  | 3,785 | 6,841
2021 |  | 2,591 | 3,447
2022 |  | 16,169 | 417
Total | $ 45,803 | 46,013 | 49,831
Total Institutional Loans | 45,803 | 46,013 | 49,831
Financing Receivables 1 To 30 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 149 | 297 | 1,117
2018 | 60 | 7 | 1,338
2019 | 145 | 320 | 647
2020 | 342 | 559 | 889
2021 | 1,498 | 135 | 379
2022 | 33 | 1,616 | 24
Total | 2,227 | 2,934 | 4,394
Total Institutional Loans | 2,227 | 2,934 | 4,394
Financing Receivables 31 To 60 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 52 | 145 | 556
2018 | 257 | 2 | 145
2019 | 230 | 165 | 41
2020 | 19 | 49 | 67
2021 | 462 | 61 | 223
2022 | 101 | 660 |
Total | 1,121 | 1,082 | 1,032
Total Institutional Loans | 1,121 | 1,082 | 1,032
Financing Receivables 61 To 90 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 25 | 24 | 609
2018 | 66 | 310 | 59
2019 | 0 | 92 | 444
2020 | 19 | 102 | 71
2021 | 227 | 69 | 127
2022 | 86 | 95 |
Total | 423 | 692 | 1,310
Total Institutional Loans | 423 | 692 | 1,310
Financing Receivables 91 To 120 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 124 | 287 | 804
2018 | 16 |  | 751
2019 | 131 | 131 | 741
2020 | 12 | 16 | 183
2021 | 467 | 47 |
2022 | 0 | 13 |
Total | 750 | 494 | 2,479
Total Institutional Loans | 750 | 494 | 2,479
Financing Receivables 121 To 150 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 545 | 43 | 68
2018 | 13 | 31 | 317
2019 | 38 | 133 | 35
2020 | 2 | 42 | 60
2021 | 323 | 256 |
2022 | 0 | 108 |
Total | 921 | 613 | 480
Total Institutional Loans | 921 | 613 | 480
Financing Receivables Greater Than 150 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 9,347 | 7,468 | 7,307
2018 | 1,826 | 2,973 | 2,088
2019 | 1,195 | 1,919 | 1,699
2020 | 891 | 1,431 | 889
2021 | 1,083 | 475 | 334
2022 | 0 | 872 |
Total | 14,342 | 15,138 | 12,317
Total Institutional Loans | 14,342 | 15,138 | 12,317
Financial Asset, Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 10,242 | 8,264 | 10,461
2018 | 2,238 | 3,323 | 4,698
2019 | 1,739 | 2,760 | 3,607
2020 | 1,285 | 2,199 | 2,159
2021 | 4,060 | 1,043 | 1,063
2022 | 220 | 3,364 | 24
Total | 19,784 | 20,953 | 22,012
Total Institutional Loans | 19,784 | 20,953 | 22,012
Financing Receivable Current [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 6,670 | 4,565 | 11,634
2018 | 2,710 | 1,955 | 4,994
2019 | 1,930 | 2,601 | 3,732
2020 | 1,280 | 1,586 | 4,682
2021 | 11,638 | 1,548 | 2,384
2022 | 1,791 | 12,805 | 393
Total | 26,019 | 25,060 | 27,819
Total Institutional Loans | 26,019 | $ 25,060 | $ 27,819
Financing Receivable Gross [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 16,912 |  |
2018 | 4,948 |  |
2019 | 3,669 |  |
2020 | 2,565 |  |
2021 | 15,698 |  |
2022 | 2,011 |  |
Total | 45,803 |  |
Total Institutional Loans | $ 45,803 |  |

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