Note 8 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2025

Notes Tables

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

	Options Outstanding
	Number of Options		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (years)
Balance—January 1, 2025		13,051	$	109.62		4.00
Options granted		—	$	—		—
Options exercised		—	$	—		—
Options canceled		—	$	—		—
Balance—March 31, 2025		13,051	$	109.62		3.76
Exercisable as of March 31, 2025		13,051	$	109.62		3.76
Vested and expected to vest as of March 31, 2025		13,051	$	109.62		3.76

Nonvested Restricted Stock Shares Activity [Table Text Block]

Restricted Stock Awards	Shares			Weighted Average Grant- Date Fair Value
Nonvested at January 1, 2025		1,310,989		$	3.43
Granted		—		$	—
Vested		(51,488	)	$	6.01
Forfeited		(2,000	)	$	2.99
Nonvested at March 31, 2025		1,257,501		$	3.33

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

	Three Months Ended March 31,
	2024		2025
	(in thousands)
Sales and distribution expenses	$	299	$	192
General and administrative expenses		1,368		591
Total stock-based compensation expense	$	1,667	$	783