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Note 6 - Goodwill and Other Acquired Intangible Assets, Net (Tables)
 6 Months Ended
Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill [Table Text Block]
The following table shows the changes in the carrying amount of goodwill for the year-to-date periods ended December 31, 2018 and June 30, 2019:
(In thousands)
Goodwill
 
Accumulated Impairment Losses
 
Net
Balance at December 31, 2017
$
197,391

 
$
(186,469
)
 
$
10,922

Goodwill acquired
3,170

 
—

 
3,170

Balance at December 31, 2018
200,561

 
(186,469
)
 
14,092

Goodwill acquired
538

 
—

 
538

Balance at June 30, 2019
$
201,099

 
$
(186,469
)
 
$
14,630
Schedule of Other Intangible Assets [Table Text Block]
The following is a summary of the gross and net carrying amounts and accumulated amortization of our other acquired intangible assets as of the periods indicated:
 
June 30, 2019
(In thousands)
Original Amount Acquired
 
Accumulated Amortization and Impairment
 
Net Carrying Amount
Client relationships
$
83,860

 
$
(51,257
)
 
$
32,603

Technology
16,964

 
(13,978
)
 
2,986

Trade name and trademarks
8,340

 
(4,296
)
 
4,044

Non-competition agreements
185

 
(181
)
 
4

Licenses
463

 
(58
)
 
405

Total
$
109,812

 
$
(69,770
)
 
$
40,042


 
December 31, 2018
(In thousands)
Original Amount Acquired
 
Accumulated Amortization and Impairment
 
Net Carrying Amount
Client relationships
$
84,000

 
$
(48,227
)
 
$
35,773

Technology
17,362

 
(13,141
)
 
4,221

Trade name and trademarks
8,340

 
(3,864
)
 
4,476

Non-competition agreements
185

 
(177
)
 
8

Licenses
463

 
(35
)
 
428

Total
$
110,350

 
$
(65,444
)
 
$
44,906