Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 71,585	$ 76,570
Number of Major Customers	4
Property, Plant and Equipment, Useful Life (Year)	3 years
Operating Lease, Payments	$ 100
Capitalized Computer Software, Additions	$ 1,000	$ 1,500
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	267,000	6,000
Number of Reportable Segments	2
Advertising Expense	$ 800	$ 300
Minimum [Member]
Capitalized Computer Software, Useful Life (Year)	3 years
Maximum [Member]
Capitalized Computer Software, Useful Life (Year)	5 years
Four Customers [Member]
Accounts Receivable, before Allowance for Credit Loss		$ 8,600
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Four Customers [Member]
Concentration Risk, Percentage	43.00%	46.00%
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 30,900
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Number of Major Customers		4
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Four Customers [Member]
Concentration Risk, Percentage	64.00%	62.00%
Revenue from Contract with Customer, Excluding Assessed Tax, Total	$ 7,300