Note 1 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Amortization of Capitalized Contract Cost [Table Text Block]

	2021		2020
	(In thousands)
Direct expenses	$	31	$	118
Selling, general and administrative expenses	$	624	$	773
Total amortization	$	655	$	891

Financing Receivable, Allowance for Credit Loss [Table Text Block]

	Balance at Beginning of Period		Bad Debt Expense (Benefit)		Write-offs		Recoveries		Balance at End of Period
Three months ended March 31, 2021	$	120	$	20	$	27	$	6	$	119
Three months ended March 31, 2020	$	144	$	20	$	35	$	14	$	143

Fair Value, by Balance Sheet Grouping [Table Text Block]

	Level 1		Level 2		Level 3		Total
	(In thousands)
As of March 31, 2021
Money Market Funds	$	4,840	$	--	$	--	$	4,840
Total Cash Equivalents	$	4,840	$	--	$	--	$	4,840
As of December 31, 2020
Money Market Funds	$	5,015	$	--	$	--	$	5,015
Total Cash Equivalents	$	5,015	$	--	$	--	$	5,015

	March 31, 2021		December 31, 2020
	(In thousands)
Total carrying amount of long-term debt	$	29,704	$	30,713
Estimated fair value of long-term debt	$	31,430	$	32,943