Accounts Receivable and Credit Losses (Credit Quality Analysis of Financing Receivable) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	$ 14,710	$ 12,219	$ 15,285
Four Years Before	2,452	3,481	4,800
Three Years Before	1,918	3,238	3,558
Two Years Before	10,085	2,280	2,569
Year Before	6,563	13,440	14,866
Origination Year	10,397	7,723	6,088
Total	46,125	42,381	47,166
Total Institutional Loans	46,125	42,381	47,166
Financing Receivables 1 To 30 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	290	104	93
Four Years Before	199	140	98
Three Years Before	2	114	90
Two Years Before	930	191	179
Year Before	612	699	473
Origination Year	959	782	342
Total	2,992	2,030	1,275
Total Institutional Loans	2,992	2,030	1,275
Financing Receivables 31 To 60 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	158	278	344
Four Years Before	67	38	137
Three Years Before	189	214	318
Two Years Before	242	145	218
Year Before	569	691	297
Origination Year	240	332	128
Total	1,465	1,698	1,442
Total Institutional Loans	1,465	1,698	1,442
Financing Receivables 61 To 90 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	34	58	113
Four Years Before	22	29	228
Three Years Before	160	217	30
Two Years Before	140	8	131
Year Before	404	668	575
Origination Year	384	273	273
Total	1,144	1,253	1,350
Total Institutional Loans	1,144	1,253	1,350
Financing Receivables 91 To 120 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	43	97	39
Four Years Before	51	139	239
Three Years Before	0	113	44
Two Years Before	21	45	93
Year Before	78	670	249
Origination Year	423	14	155
Total	616	1,078	819
Total Institutional Loans	616	1,078	819
Financing Receivables 121 To 150 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	67	17	259
Four Years Before	21	30	4
Three Years Before	38	20	0
Two Years Before	138	41	15
Year Before	48	206	81
Origination Year	23	81	102
Total	335	395	461
Total Institutional Loans	335	395	461
Financing Receivables Greater Than 150 Days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	7,945	6,978	8,239
Four Years Before	1,058	876	1,751
Three Years Before	718	1,077	1,412
Two Years Before	2,966	683	946
Year Before	1,261	1,596	2,241
Origination Year	19	377	129
Total	13,967	11,587	14,718
Total Institutional Loans	13,967	11,587	14,718
Financial Asset, Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	8,537	7,532	9,087
Four Years Before	1,418	1,252	2,457
Three Years Before	1,107	1,755	1,894
Two Years Before	4,437	1,113	1,582
Year Before	2,972	4,530	3,916
Origination Year	2,048	1,859	1,129
Total	20,519	18,041	20,065
Total Institutional Loans	20,519	18,041	20,065
Financing Receivable Current
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	6,173	4,687	6,198
Four Years Before	1,034	2,229	2,343
Three Years Before	811	1,483	1,664
Two Years Before	5,648	1,167	987
Year Before	3,591	8,910	10,950
Origination Year	8,349	5,864	4,959
Total	25,606	24,340	27,101
Total Institutional Loans	$ 25,606	$ 24,340	$ 27,101