Note 12 - Geographic Information and Major Customer and Product Data - Major Customers Data As Percentage of Total Revenues (Details) - Revenue from Contract with Customer Benchmark [Member] - Customer Concentration Risk [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Customer A [Member]
Percentage of total revenues	21.00%	14.00%	15.00%
Customer B [Member]
Percentage of total revenues		15.00%	19.00%