Note 9 - Fair Value Measurements - Schedule of Fair Value Valuation Techniques (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Receivables, fair value	$ 8,779	$ 7,264
Enterprise Value Loans [Member]
Receivables, fair value	8,779	$ 891
Enterprise Value Loans [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Receivables, measurement input		0
Enterprise Value Loans [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Receivables, measurement input		0.26
Enterprise Value Loans [Member] | Valuation, Market Approach [Member]
Receivables, fair value	$ 8,779	$ 891
Enterprise Value Loans [Member] | Valuation, Market Approach [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Receivables, measurement input	0
Enterprise Value Loans [Member] | Valuation, Market Approach [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Receivables, measurement input	0.04
Digital Asset Customer Loan [Member]
Receivables, fair value		6,373
Digital Asset Customer Loan [Member] | Valuation Technique, Discounted Cash Flow [Member]
Receivables, fair value		$ 6,373
Digital Asset Customer Loan [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Receivables, measurement input		0
Digital Asset Customer Loan [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Receivables, measurement input		0.25