Note 10 - Stock-based Compensation Expense (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

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

	Restricted Stock Units			Grant Date Weighted- Average Fair Value		Intrinsic Value
Outstanding at January 1, 2020		3,000		$	3.03	$	—
Granted		144,000		$	1.96	$	—
Vested		(134,000	)	$	1.98	$	—
Outstanding at December 31, 2020		13,000		$	1.97	$	2,000
Granted		165,000		$	2.61	$	—
Vested		(168,000	)	$	2.57	$	—
Outstanding at December 31, 2021		10,000		$	2.57	$	—

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

			Stock-Based
	Awards Issued		Compensation
	and Vested		Expense
Options		—	$	2,000
Options Exercised		5,000		—
RSUs Issued in Lieu of Retainer Fees		—		75,000
RSUs Issued in Lieu of Retainer Fees - vested and issued		121,000		—
Annual RSU Awards		2,000		12,000
Executive Compensation		130,000		331,000
		258,000	$	420,000

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

Options	Number of Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Balance at December 31, 2019		450,000		$	2.78		2.44	$	27,000
Granted		10,000		$	1.88		7.00	$	—
Forfeited		(43,000	)	$	2.54		—	$	—
Balance at December 31, 2020		417,000		$	2.79		1.61	$	2,000
Granted		6,000		$	2.92		7.00	$	—
Exercised		(22,000	)	$	2.65
Forfeited		(334,000	)	$	2.81		—	$	—
Balance at December 31, 2021		67,000		$	2.72		3.33	$	-
Exercisable at December 31, 2020		405,000		$	2.80		1.48	$	—
Exercisable at December 31, 2021		58,000		$	2.72		2.96	$	—

Schedule of Nonvested Share Activity [Table Text Block]

Nonvested Options	Number of Options			Weighted Average Grant-Date Fair Value
Nonvested at December 31, 2019		25,000		$	1.40
Granted		10,000		$	0.78
Vested		(23,000	)	$	1.22
Nonvested at December 31, 2020		12,000		$	1.07
Granted		6,000		$	1.10
Vested		(9,000	)	$	0.91
Nonvested at December 31, 2021		9,000		$	1.10

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2021			2020
Expected life (years)		7.0			7.0
Expected forfeiture rate		0.0	%		0.0	%
Expected volatility		40	%		40	%
Dividend yield		0	%		0	%
Risk-free interest rate		1.2	%		0.4	%