Note 8 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

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

	Three Months Ended
	March 31,
	2023		2022
Stock options and restricted stock units, net of forfeitures	$	89	$	18
After-tax effect of stock-based compensation	$	89	$	18

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, 2023		384,500	$	2.98
Granted		—		—
Exercised		—		—
Expired or forfeited		—		—
Outstanding on March 31, 2023		384,500	$	2.98		2.19	$	28
Exercisable on March 31, 2023		384,500	$	2.98		2.19	$	28

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

			Weighted Average
			Grant Date
	Shares		Fair Value
Unvested restricted stock units at January 1, 2023		767,048	$	1.32
Granted		100,000		1.25
Unvested restricted stock units at March 31, 2023		867,048	$	1.31