Note 8 - Stock-based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

	For the Year Ended December 31,
	2023		2022
Stock options and restricted stock units, net of forfeitures	$	389	$	224
After-tax effect of stock based compensation	$	389	$	224

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

	2023					2022
	Number of Options			Weighted-Average Exercise Price		Number of Options			Weighted-Average Exercise Price
Outstanding at beginning of year		384,500		$	2.98		434,500		$	3.05
Granted		—			—		—			—
Exercised		(44,000	)		0.96		—			—
Expired or forfeited		(70,000	)		3.85		(50,000	)		3.55
Outstanding at end of year		270,500		$	3.09		384,500		$	2.98
Exercisable at end of year		270,500		$	3.09		384,500		$	2.98
Weighted-Average Remaining Contractual Life (years)					1.56					2.43
Aggregate Intrinsic Value				$	4				$	27

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Options Outstanding and Exercisable
Range of Exercise Prices	Number of Options		Weighted-Average Remaining Contractual Life (years)		Weighted-Average Exercise Price
$0.96 - $1.27		44,000		3.9	$	0.97
$1.28 - $2.01		27,000		2.4		1.58
$2.02 - $3.83		105,000		1.4		2.44
$3.84 - $5.22		94,500		0.4		5.22
		270,500		1.6	$	3.09

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

	Shares			Weighted Average Grant Date Fair Value
Unvested restricted stock units at December 31, 2021		45,003		$	1.51
Granted		807,048			1.32
Forfeited		(40,000	)		1.32
Vested		(45,003	)		1.51
Unvested restricted stock units at December 31, 2022		767,048			1.32
Granted		1,040,200			1.26
Forfeited		—			—
Vested		(45,000	)		1.37
Unvested restricted stock units at December 31, 2023		1,762,248		$	1.29