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Accounts Receivable and Credit Losses (Credit Quality Analysis of Financing Receivable) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019
--- | --- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | $ 49,831 | $ 50,025 | $ 47,673
Institutional Loans, Past Due |  | 24,276 | 16,146
Institutional Loans, Current |  | 25,749 | 31,527
Total Institutional Loans | 49,831 | 50,025 | 47,673
Financing Receivables 1 To 30 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 1,117 |  |
2017 | 1,338 |  |
2018 | 647 |  |
2019 | 889 |  |
2020 | 379 |  |
2021 | 24 |  |
Total | 4,394 |  |
Institutional Loans, Past Due |  | 7,192 | 3,317
Total Institutional Loans | 4,394 |  |
Financing Receivables 31 To 60Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 556 |  |
2017 | 145 |  |
2018 | 41 |  |
2019 | 67 |  |
2020 | 223 |  |
Total | 1,032 |  |
Institutional Loans, Past Due |  | 1,755 | 1,342
Total Institutional Loans | 1,032 |  |
Financing Receivables 61 To 90 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 609 |  |
2017 | 59 |  |
2018 | 444 |  |
2019 | 71 |  |
2020 | 127 |  |
Total | 1,310 |  |
Institutional Loans, Past Due |  | 1,547 | 526
Total Institutional Loans | 1,310 |  |
Financing Receivables Greater Than 90 Days Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 8,179 |  |
2017 | 3,156 |  |
2018 | 2,475 |  |
2019 | 1,132 |  |
2020 | 334 |  |
Total | 15,276 |  |
Institutional Loans, Past Due |  | $ 13,782 | $ 10,961
Total Institutional Loans | 15,276 |  |
Financing Receivable Past Due [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 10,461 |  |
2017 | 4,698 |  |
2018 | 3,607 |  |
2019 | 2,159 |  |
2020 | 1,063 |  |
2021 | 24 |  |
Total | 22,012 |  |
Total Institutional Loans | 22,012 |  |
Financing Receivable Current [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 11,634 |  |
2017 | 4,994 |  |
2018 | 3,732 |  |
2019 | 4,682 |  |
2020 | 2,384 |  |
2021 | 393 |  |
Total | 27,819 |  |
Total Institutional Loans | 27,819 |  |
Financing Receivable Gross [Member] |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Prior | 22,095 |  |
2017 | 9,692 |  |
2018 | 7,339 |  |
2019 | 6,841 |  |
2020 | 3,447 |  |
2021 | 417 |  |
Total | 49,831 |  |
Total Institutional Loans | $ 49,831 |  |

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