Note 3 - Revenue Recognition 2 (Details Textual)	Mar. 31, 2026
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01
Revenue, Remaining Performance Obligation, Percentage	39.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-04-01
Revenue, Remaining Performance Obligation, Percentage	67.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	24 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-04-01
Revenue, Remaining Performance Obligation, Percentage	83.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)	36 months