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Note 1 - Business and Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2018
Notes Tables  
Property and Equipment, Estimated Useful Life [Table Text Block]
Property and Equipment
 
Useful Life
(in years)
Equipment
 
 
2
 
 
 
to
 
 
 
5
 
Leasehold improvements
 
 
5
 
 
 
to
 
 
 
10
 
Furniture and fixtures
 
 
 
 
 
 
5
 
 
 
 
 
Capitalized software
 
 
3
 
 
 
to
 
 
 
10
 
Building and building improvements
 
 
 
 
 
 
up to 39
 
 
 
 
 
Useful Lives of Intangible Assets [Table Text Block]
Intangible Assets
 
Useful Life
(in years)
Customer relationships
 
 
7
 
 
 
to
 
 
 
15
 
Restrictive covenants
 
 
1
 
 
 
to
 
 
 
3
 
Trade names
 
 
1.5
 
 
 
to
 
 
 
7
 
Intellectual property
 
 
4
 
 
 
to
 
 
 
6