Note 8 - Geographic Information and Major Customer Data - Major Customers Data As Percentage of Total Revenues (Details) - Revenue from Contract with Customer Benchmark [Member] - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Customer A [Member]
Percentage of total revenues	11.00%	27.00%	11.00%	21.00%
Customer B [Member]
Percentage of total revenues				10.00%