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Note 15 - Equity-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

(in thousands, except years and per share data)		Awards				Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Life (years)				Aggregate Intrinsic Value
Outstanding at December 31, 2022			132			$	37.99				7.5			$	69
Options granted			42				1.67
Restricted stock units granted			5				—
Options exercised			—				—
Restricted stock units vested			(5	)			—
Options forfeited/cancelled			(19	)			62.39
Restricted stock units cancelled			(30	)			—
Outstanding at December 31, 2023			125				31.15				7.3				1
Vested and expected to vest at December 31, 2023			119				32.40				7.3				1
Vested and exercisable at December 31, 2023			63				56.85				5.7				—

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

		For the Years Ended December 31,
		2023				2022
Research and development		$	21			$	20
Sales and marketing			96				52
General and administrative			174				148
Total stock-based compensation expense		$	291			$	220

Employees and Directors [Member]

Notes Tables

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		For the Years Ended December 31,
Assumptions		2023				2022
Expected price volatility			154	%			158	%
Expected term (in years)			6.66				6.45
Risk-free interest rate			3.57	%			2.36	%
Dividend yield			0.00	%			0.00	%
Weighted-average fair value of options granted during the period		$	1.29			$	9.22

X

- Definition

Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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