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Note 10 - Revenue - Remaining Performance Obligations 2 (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Revenue, remaining performance obligation, amount $ 149,180
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 124,271
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 11,493
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 5,212
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 3,231
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 1,994
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01  
Revenue, remaining performance obligation, expected timing of satisfaction, period (Year) 1 year
Revenue, remaining performance obligation, amount $ 2,979