Note 1 - Organization and Significant Accounting Policies - Concentrations Risk by Geographic Locations (Details) - Revenue Benchmark [Member] - Geographic Concentration Risk [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
UNITED STATES
Revenue by customers' geographic locations, percentage	69.00%	82.00%	74.00%	80.00%
EMEA [Member]
Revenue by customers' geographic locations, percentage	20.00%	9.00%	18.00%	10.00%
CANADA
Revenue by customers' geographic locations, percentage	8.00%	6.00%	5.00%	7.00%
Geographic, Other [Member]
Revenue by customers' geographic locations, percentage	3.00%	3.00%	3.00%	3.00%
All Location [Member]
Revenue by customers' geographic locations, percentage	100.00%	100.00%	100.00%	100.00%