Note 10 - Stock Options, Incentive Plans, Stock Awards, and Employee Benefit Plan (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

					Weighted Average
			Weighted Average		Contractual		Aggregate Intrinsic
Stock Awards	Shares		Exercise Price		Remaining Life		Value
Outstanding, December 31, 2021		5,241,902	$	2.25
Granted		103,000		1.61
Vested		230,002		—
Forfeited		132,000		—
Outstanding, December 31, 2022		4,982,900	$	2.27		5.06	$	(0.62	)
Expected to Vest after December 31, 2022		4,982,900	$	2.27		5.06	$	(0.62	)