12. Unaudited Quarterly Financial Information

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Information

	Quarter Ended
	December 31			September 30		June 30		March 31
2019	(in thousands, except per share data)
Total revenue	$	2,582		$	3,079	$	3,121	$	2,923
Operating income		224			835		801		754
Net income (loss) before income taxes		(1,283	)		615		580		627
Net income (loss)		(1,763	)		467		441		476
Net income per common share
Basic		(.08	)		.02		.02		.02
Diluted		(.08	)		.02		.02		.02

	Quarter Ended
	December 31			September 30			June 30		March 31
2018	(in thousands, except per share data)
Total revenue	$	3,043		$	3,275		$	3,177	$	2,953
Operating income		541			714			703		699
Valuation allowance for receivables		(2,800	)		(1,296	)		-		-
Net income (loss) before income taxes from     continuing operations		(2,428	)		(755	)		550		539
Net income (loss) from continuing operations		(3,277	)		(562	)		412		403
Loss from discontinued operations		(38	)		-			-		-
Net income (loss)		(3,315	)		(562	)		412		403
Net income (loss) from continuing operations     per common share
Basic		(.15	)		(.03	)		.02		..02
Diluted (1)		(.15	)		(.02	)		.02		.02
Net income (loss) per common share
Basic		(.15	)		(.03	)		.02		.02
Diluted (1)		(.15	)		(.02	)		.02		.02

(1) Net loss per share is shown the same as basic loss per share because the underlying dilutive securities have

      an anti-dilutive effect.