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Note 19 - Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
 
Year ended December 31
 
 
 
 
 
2019
 
$
86,376
 
 
 
2020
 
 
76,169
 
 
 
2021
 
 
62,171
 
 
 
2022
 
 
51,011
 
 
 
2023
 
 
38,103
 
 
 
Thereafter
 
 
97,631
 
 
 
 
 
$
411,461
 
 
Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block]
 
Year ended December 31
 
 
 
 
 
2019
 
$
11,063
 
 
 
2020
 
 
6,600
 
 
 
2021
 
 
1,467
 
 
 
2022
 
 
1,179
 
 
 
2023
 
 
491
 
 
 
 
 
$
20,800