Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

The following tables summarize the major categories of investments with fair values adjusted on a recurring basis as of March 31, 2022, and June 30, 2021, and other investments with fair values adjusted on a nonrecurring basis, with fair values shown according to the fair value hierarchy.

	March 31, 2022
	Quoted Prices		Significant Other Inputs		Significant Unobservable Inputs
(dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Total
Investments carried at fair value on a recurring basis:
Investments in equity securities:
Equities - International	$	752	$	-	$	4,758	$	5,510
Mutual funds - Fixed income		6,171		-		-		6,171
Mutual funds - Global equity		797		-		-		797
Total investments in equity securities:	$	7,720	$	-	$	4,758	$	12,478
Investments in debt securities:
Available-for-sale - Convertible debentures		-		-		12,706		12,706
Total investments carried at fair value on a recurring basis:	$	7,720	$	-	$	17,464	$	25,184
Investments carried at fair value on a nonrecurring basis:
Other investments¹	$	-	$	-	$	362	$	362

^1. Other investments include equity securities without readily determinable fair values that were adjusted as a result of the measurement alternative on dates during the nine months ended March 31, 2022. These securities are classified as level 3 due to the infrequency of the observable price changes and/or restrictions on the shares.

	June 30, 2021
	Quoted Prices		Significant Other Inputs		Significant Unobservable Inputs
(dollars in thousands)	(Level 1)		(Level 2)		(Level 3)		Total
Investments carried at fair value on a recurring basis:
Investments in equity securities:
Equities - International	$	2,837	$	135	$	8,026	$	10,998
Mutual funds - Fixed income		6,322		-		-		6,322
Mutual funds - Global equity		938		-		-		938
Total investments in equity securities:	$	10,097	$	135	$	8,026	$	18,258
Investments in debt securities:
Available-for-sale - Convertible debentures		-		-		17,049		17,049
Total investments carried at fair value on a recurring basis:	$	10,097	$	135	$	25,075	$	35,307
Investments carried at fair value on a nonrecurring basis:
Other investments¹	$	-	$	-	$	2,554	$	2,554

^1. Other investments include equity securities without readily determinable fair values that were adjusted as a result of the measurement alternative on dates during the fiscal year ended June 30, 2021. These securities are classified as level 3 due to the infrequency of the observable price changes and/or restrictions on the shares.

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

The Company currently considers the fair value measurements of HIVE convertible securities to contain Level 3 inputs. The following is quantitative information as of March 31, 2022, with respect to the securities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3).

	March 31, 2022
(dollars in thousands)	Fair Value		Principal Valuation Techniques	Unobservable Inputs
Investments in equity securities:
Common share purchase warrants	$	4,758	Option pricing model
				Volatility	93.3	%
Investments in debt securities:
Available-for-sale - Convertible debentures	$	12,706	Binomial lattice model
				Volatility	72.7	%
				Credit Adjusted Discount Rate	3.6	%

Debt Securities, Available-for-sale and Held-to-Maturity [Table Text Block]

The following details the components of the Company’s available-for-sale debt investments as of March 31, 2022, and June 30, 2021.

	March 31, 2022
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains in Other Comprehensive Income		Gross Unrealized Losses in Earnings			Fair Value
Available-for-sale - Convertible debentures¹	$	8,683	$	6,073	$	(2,050	)	$	12,706

	June 30, 2021
(dollars in thousands)	Amortized Cost		Gross Unrealized Gains in Other Comprehensive Income		Gross Unrealized Losses in Earnings		Fair Value
Available-for-sale - Convertible debentures¹	$	8,741	$	8,308	$	-	$	17,049

1.

Changes in unrealized gains and losses are included in the statement of comprehensive income (loss), except for embedded derivatives. Changes in unrealized and realized gains and losses for embedded derivatives are included in earnings in the statement of operations.

	March 31, 2022
(dollars in thousands)	Amortized Cost		Gross Unrecognized Holding Gains		Gross Unrecognized Holding Losses			Fair Value
Held-to-maturity - Debentures¹	$	1,000	$	-	$	(83	)	$	917

	June 30, 2021
(dollars in thousands)	Amortized Cost		Gross Unrecognized Holding Gains		Gross Unrecognized Holding Losses		Fair Value
Held-to-maturity - Debentures¹	$	1,000	$	3	$	-	$	1,003

1.

Held-to-maturity debt investments are carried at amortized cost, and the fair value is classified as Level 2 according to the fair value hierarchy.

Equity Securities without Readily Determinable Fair Value [Table Text Block]

The following table presents the carrying value of equity securities without readily determinable fair values held as of March 31, 2022, and 2021, that are measured under the measurement alternative and the related adjustments recorded during the periods presented for those securities with observable price changes or impairments. These securities are included in the nonrecurring fair value hierarchy tables when applicable price changes are observable, or when impairments occur.

	Nine Months Ended					Three Months Ended
	March 31,					March 31,
(dollars in thousands)	2022		2021			2022		2021
Other Investments
Carrying value	$	4,208	$	2,940		$	4,208	$	2,940
Upward carrying value changes		187		1,156			187		1,156
Downward carrying value changes/impairment		-		(164	)		-		(41	)

Unrealized Gain (Loss) on Investments [Table Text Block]

The following table presents unrealized gains and losses recognized on equity investments held as of the end of each three and nine months ended March 31, 2022, and 2021.

	Nine Months Ended						Three Months Ended
	March 31,						March 31,
(dollars in thousands)	2022			2021			2022			2021
Net gains (losses) recognized during the period on equity securities	$	(3,098	)	$	29,181		$	(3,049	)	$	7,678
Less: Net gains (losses) recognized during the period on equity securities sold during the period		(179	)		(18,837	)		5			(532	)
Net unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date¹	$	(3,277	)	$	10,344		$	(3,044	)	$	7,146

^1. Includes $187,000 for the three and nine months ended March 31, 2022, and $1.1 million and $1.0 million for the three and nine months ended March 31, 2021, respectively, of net gains (losses) as a result of the measurement alternative.

INVESTMENTS (Tables) [Line Items]

Schedule of Derivative Instruments [Table Text Block]

The following table presents the effect of embedded derivatives on the Consolidated Statements of Operations, categorized by risk exposure, for the three and nine months ended March 31, 2022, and 2021.

	Nine Months Ended March 31, 2022			Nine Months Ended March 31, 2021		Three Months Ended March 31, 2022			Three Months Ended March 31, 2021
	Other Income (Loss)			Other Income (Loss)		Other Income (Loss)			Other Income (Loss)
(dollars in thousands)	Investment Income (Loss)			Investment Income (Loss)		Investment Income (Loss)			Investment Income (Loss)
Embedded Derivatives:
Equity price risk exposure	$	(2,050	)	$	-	$	(1,491	)	$	-