Accounts Receivable and Credit Losses (Credit Quality Analysis of Financing Receivable) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	$ 15,285	$ 12,829	$ 14,225
2018	4,800	5,278	7,492
2019	3,558	5,361	5,215
2020	2,569	3,785	4,317
2021	14,866	2,591	3,429
2022	6,088	16,169	11,056
Total	47,166	46,013	45,734
Total Institutional Loans	47,166	46,013	45,734
Financing Receivables 1 To 30 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	93	297	557
2018	98	7	344
2019	90	320	260
2020	179	559	386
2021	473	135	241
2022	342	1,616	656
Total	1,275	2,934	2,444
Total Institutional Loans	1,275	2,934	2,444
Financing Receivables 31 To 60 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	344	145	171
2018	137	2	302
2019	318	165	298
2020	218	49	98
2021	297	61	245
2022	128	660	25
Total	1,442	1,082	1,139
Total Institutional Loans	1,442	1,082	1,139
Financing Receivables 61 To 90 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	113	24	1,868
2018	228	310	744
2019	30	92	672
2020	131	102	605
2021	575	69	354
2022	273	95	67
Total	1,350	692	4,310
Total Institutional Loans	1,350	692	4,310
Financing Receivables 91 To 120 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	39	287	120
2018	239	0	139
2019	44	131	22
2020	93	16	134
2021	249	47	171
2022	155	13	0
Total	819	494	586
Total Institutional Loans	819	494	586
Financing Receivables 121 To 150 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	259	43	401
2018	4	31	351
2019	0	133	129
2020	15	42	143
2021	81	256	154
2022	102	108	28
Total	461	613	1,206
Total Institutional Loans	461	613	1,206
Financing Receivables Greater Than 150 Days Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	8,239	7,468	5,994
2018	1,751	2,973	2,369
2019	1,412	1,919	1,512
2020	946	1,431	949
2021	2,241	475	309
2022	129	872	116
Total	14,718	15,138	11,249
Total Institutional Loans	14,718	15,138	11,249
Financial Asset, Past Due [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	9,087	8,264	9,111
2018	2,457	3,323	4,249
2019	1,894	2,760	2,893
2020	1,582	2,199	2,315
2021	3,916	1,043	1,474
2022	1,129	3,364	892
Total	20,065	20,953	20,934
Total Institutional Loans	20,065	20,953	20,934
Financing Receivable Current [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	6,198	4,565	5,114
2018	2,343	1,955	3,243
2019	1,664	2,601	2,322
2020	987	1,586	2,002
2021	10,950	1,548	1,955
2022	4,959	12,805	10,164
Total	27,101	25,060	24,800
Total Institutional Loans	$ 27,101	$ 25,060	$ 24,800