Note 8 - Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Stock options and restricted stock units, net of forfeitures	$	124	$	98	$	228	$	187
After-tax effect of stock-based compensation	$	124	$	98	$	228	$	187

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, 2024		270,500		$	3.09
Granted		—			—
Exercised		—			—
Expired or forfeited		(94,500	)		5.22
Outstanding on June 30, 2024		176,000		$	1.94		1.68	$	5
Exercisable on June 30, 2024		176,000		$	1.94		1.68	$	5

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

				Weighted Average
				Grant Date
	Shares			Fair Value
Unvested restricted stock units at January 1, 2024		1,762,248		$	1.29
Granted		151,000			1.09
Vested		(406,026	)		1.14
Forfeited		(425,100	)		1.26
Unvested restricted stock units at June 30, 2024		1,082,122		$	1.26