Note 2 - Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	2021		2020
Numerator for basic and diluted earnings (loss) per share	$	194,000	$	(7,058,000	)
Denominator:
Denominator for basic and diluted earnings per share – weighted-average shares		6,044,000		6,182,000
Effect of dilutive securities Employee stock options and restricted stock		15,000		-
Denominator for diluted earnings per share – adjusted weighted-average shares		6,059,000		6,182,000
Earnings (loss) per common share- basic	$	0.03	$	(1.14	)
Earnings (loss) per common share- diluted	$	0.03	$	(1.14	)

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	2021		2020
Revenues
Domestic	$	14,719,000	$	16,204,000
Foreign		2,909,000		1,633,000
Total	$	17,628,000	$	17,837,000

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	2021			2020
Profit or (loss)
Domestic	$	245,000		$	(7,082,000	)
Foreign		(51,000	)		24,000
Total	$	194,000		$	(7,058,000	)

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	2021		2020
Property and equipment, net
Domestic	$	25,557,000	$	27,223,000
Foreign		2,697,000		3,195,000
Total	$	28,254,000	$	30,418,000