Note 7 - Other Assets (Tables)

12 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Other Assets [Table Text Block]

	As of June 30, 2023		As of June 30, 2022
Prepaid expenses	$	889,128	$	630,285
Other current assets		15,025		69,262
Total	$	904,153	$	699,547

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

	June 30, 2023
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Money market funds	$	3,402,472	$	-	$	-		$	3,402,472
Other short-term investments		280,401		-		(1,653	)		278,748
Short-term treasury bills		1,952,010		16,950		-			1,968,960
Other equities - related parties		5,971,926		88,345		(229,470	)		5,830,801
Total short-term investments	$	11,606,809	$	105,295	$	(231,123	)	$	11,480,981

	June 30, 2022
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Money market funds	$	1,051,017	$	-	$	-		$	1,051,017
Other short term investments		271,346		-		(1,919	)		269,427
Short-term treasury bills		2,470,020		-		(4,156	)		2,465,864
Other equities - related parties		1,246,926		32,697		-			1,279,623
Total short-term investments	$	5,039,309	$	32,697	$	(6,075	)	$	5,065,931