Note 1 - General and Basis of Presentation 2 (Details Textual) - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 - Product [Member] $ in Millions	Jun. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Amount	$ 54.9
Revenue, Remaining Performance Obligation, Percentage	100.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	24 months