Note 8 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
Stock options and restricted stock units, net of forfeitures	$	28	$	20	$	46	$	40
After-tax effect of stock-based compensation	$	28	$	20	$	46	$	40

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

						Weighted- Average
	Number			Weighted-		Remaining		Aggregate
	of			Average		Contractual		Intrinsic
	Options			Exercise Price		Term		Value
Outstanding on January 1, 2022		434,500		$	3.05
Granted		—			—
Exercised		—			—
Expired or forfeited		(50,000	)		3.55
Outstanding on June 30, 2022		384,500		$	2.98		2.94	$	24
Exercisable on June 30, 2022		384,500		$	2.98		2.94	$	24

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

				Weighted Average
				Grant Date
	Shares			Fair Value
Unvested restricted stock units at January 1, 2022		45,003		$	1.51
Granted		807,048			1.32
Forfeited		—			—
Vested		(45,003	)		1.51
Unvested restricted stock units at June 30, 2022		807,048		$	1.32