Note 6 - Fair Value Measurements (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2023

Dec. 31, 2022

Notes Tables

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

	September 30, 2023
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	809,997	$	-	$	-	$	809,997

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	58,242	$	-	$	-	$	58,242

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	58,242	$	-	$	-	$	58,242
Other liabilities:
Fair value of contingent consideration	$	-	$	-	$	-	$	-

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	1,600,663	$	-	$	-	$	1,660,663
Other liabilities:
Fair value of contingent consideration	$	-	$	-	$	930,000	$	930,000

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

December 31, 2020	$	-
Change in fair value		930,000
December 31, 2021		930,000
Change in fair value		(930,000	)
December 31, 2022	$	-

Fair Value Measurements, Nonrecurring [Table Text Block]

	2022		2021
Impairment of long-lived assets
Intangible assets	$	3,649,193	$	-
Right of use assets		113,722		-
		3,762,915		-
Impairment of goodwill		6,460,168		-
Total	$	10,223,083	$	-

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

Consideration	Amount		Description and Valuation Methodology
Cash, net	$	935,000	Cash at closing of $1 million less estimated value of transition services to be provided.
Buyer stock		581,000	Based on estimated post-money valuation of GMI after SP investment, applying a minority interest discount.
Contingent payments		682,000	Annual cash payments, over approximately seven years, up to a total of $4 million, equal to 5% of GMI’s net revenue. Applied a discount rate of 40.8% to projected revenue.
Net working capital		302,000	Carrying value approximates fair value.
Estimated fair value of reporting unit	$	2,500,000