Note 4 - Revenue Recognition - Schedule of Remaining Performance Obligations 2 (Details) $ in Thousands	Apr. 30, 2026 USD ($)
Total	$ 103,264
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-05-01
Total	55,014
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-05-01
Total	32,616
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-05-01
Total	15,634
National Retail Solutions [Member]
Total	25,268
National Retail Solutions [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-05-01
Total	10,360
National Retail Solutions [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-05-01
Total	7,987
National Retail Solutions [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-05-01
Total	6,921
Net2phone [Member]
Total	77,996
Net2phone [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-05-01
Total	44,654
Net2phone [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-05-01
Total	24,629
Net2phone [Member] \| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-05-01
Total	$ 8,713