Note 18 - Income Taxes (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
 
 
Year ended December 31,
 
 
 
2016
 
 
2015
 
 
2014
 
US
   $
65,559
    $
43,598
    $
16,944
 
Foreign
    
(67,437
 )    
(53,692
 )    
15,856
 
Total
   $
(1,878
 )   $
(10,094
 )   $
32,800
 
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
 
 
Year ended December 31,
 
 
 
2016
 
 
2015
 
 
2014
 
Federal:
                        
Current
   $
21,202
    $
15,161
    $
9,534
 
Deferred
    
(6,477
 )    
(1,606
 )    
(2,792
 )
     
14,725
     
13,555
     
6,742
 
State:
                        
Current
   $
4,580
    $
2,644
    $
2,188
 
Deferred
    
(938
 )    
(38
 )    
(621
 )
     
3,642
     
2,606
     
1,567
 
Foreign:
                        
Current
   $
266
    $
523
    $
(616
 )
Deferred
    
(1,597
 )    
(2,101
 )    
596
 
     
(1,331
 )    
(1,578
 )    
(20
 )
                         
Total provision for income taxes
   $
17,036
    $
14,583
    $
8,289
 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
 
 
Year Ended December 31,
  
 
 
2016
 
 
2015
 
 
2014
 
Federal statutory rates
    
35
 %    
35
 %    
35
 %
Federal income tax at statutory rates
   $
(657
 )   $
(3,533
 )   $
11,480
 
Change in valuation allowance
    
9,480
     
3,574
     
1,758
 
Change in uncertain tax positions
    
73
     
(76
 )    
(1,741
 )
State income taxes, net of federal benefit
    
2,396
     
1,785
     
1,369
 
Difference between federal statutory and foreign tax rate
    
9,427
     
4,642
     
(353
 )
Stock compensation
    
-
     
(184
 )    
(524
 )
Meals and entertainment
    
96
     
81
     
85
 
Amortization of deferred consideration
    
-
     
9,444
     
1,574
 
Transaction costs
    
-
     
(447
 )    
1,769
 
Contingent consideration liability reversal
    
-
     
(854
 )    
(5,748
 )
Nontaxable interest income
    
-
     
(965
 )    
(660
 )
Tax credits
    
(947
 )    
(456
 )    
-
 
Legal expense
    
522
     
284
     
-
 
Depreciation
    
-
     
649
     
-
 
Equity in net loss of investee
    
624
     
366
     
-
 
Asset Impairment
    
2,353
     
-
     
-
 
Foreign Exchange
    
(7,001
 )    
-
     
-
 
Other
    
670
     
273
     
(720
 )
Provision for income taxes
   $
17,036
    $
14,583
    $
8,289
 
Effective income tax rate
    
(907
 )%    
(144
 )%    
25
 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
 
 
December 31,
 
 
 
2016
 
 
2015
 
Deferred tax assets:
                
Net operating loss carryforwds
   $
17,742
    $
16,889
 
Tax credit carryforwards
    
399
     
48
 
Accounts receivable allowance
    
1,341
     
355
 
Accrued items and reserves
    
18,669
     
12,955
 
Stock compensation
    
4,224
     
3,226
 
Deferred rent
   
915
     
614
 
Deferred financing costs
   
-
     
127
 
Other
    
180
     
228
 
     
43,470
     
34,442
 
Deferred tax liabilities:
                
Deferred financing costs
   
154
     
-
 
Prepaids
    
2,103
     
1,181
 
Property and equipment depreciation
    
1,238
     
3,697
 
Goodwill and intangibles amortization
    
9,568
     
13,248
 
Equity Investment
    
59,244
     
-
 
Other
    
203
     
273
 
     
72,510
     
18,399
 
Net deferred tax assets
    
(29,040
 )    
16,043
 
Less valuation allowance
    
(27,423
 )    
(21,513
 )
Net deferred tax assets
   $
(56,463
 )   $
(5,470
 )
Current deferred tax assets, net of valuation allowance of $163 and $0 for 2016 and 2015, respectively
   $
6,825
    $
2,891
 
Net noncurrent deferred tax assets, net of valuation allowance of $27,260 and $21,513 for 2016 and 2015, respectively
    
4,003
     
42
 
Net noncurrent deferred tax liabilities, net of valuation allowance of $0 and $0 for 2016 and 2015, repectively
    
(67,291
 )    
(8,403
 )
    $
(56,463
 )   $
(5,470
 )
Summary of Operating Loss Carryforwards [Table Text Block]
2017
   $
-
 
2018
    
13
 
2019
    
-
 
2020
    
-
 
2021
    
207
 
Thereafter
    
116
 
    $
336
 
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
 
 
December 31,
 
 
 
2016
 
 
2015
 
 
2014
 
Unrecognized tax benefits, beginning of year
   $
271
    $
347
    $
414
 
Balance upon acquisition/disposition
    
764
     
-
     
1,674
 
Increase (decrease) related to prior year positions
    
37
     
(47
 )    
14
 
Increase related to current year tax positions
    
139
     
48
     
100
 
Statute of limitations expiration
    
(103
 )    
(77
 )    
(1,855
 )
Unrecognized tax benefits, end of year
   $
1,108
    $
271
    $
347
 
Foreign Tax Authority [Member]  
Notes Tables  
Summary of Operating Loss Carryforwards [Table Text Block]
Australia
   $
32,736
 
Canada
    
782
 
France
    
3,382
 
Poland
    
264
 
Sweden
    
201
 
UK
    
39,666