Note 2 - Revenue Recognition - Transaction Price Allocated to the Remaining Performance Obligations (Details) (Parentheticals)	Mar. 31, 2021
Partner Solutions [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Remaining Performance Obligation (Year)	273 days
Partner Solutions [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Remaining Performance Obligation (Year)	1 year
Partner Solutions [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Remaining Performance Obligation (Year)	1 year
Edge to Cloud [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Remaining Performance Obligation (Year)	273 days
Edge to Cloud [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01
Remaining Performance Obligation (Year)	1 year
Edge to Cloud [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Remaining Performance Obligation (Year)	1 year