XML 46 R35.htm IDEA: XBRL DOCUMENT v3.10.0.1
Note 5 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Deferred compensation plan $ 5,762 $ 6,244
Derivatives, assets 68  
Total assets 5,830  
Derivatives, liabilities   (60)
Fair Value, Inputs, Level 1 [Member]    
Deferred compensation plan 4,788 5,251
Derivatives, assets  
Total assets 4,788  
Derivatives, liabilities  
Fair Value, Inputs, Level 2 [Member]    
Deferred compensation plan 974 993
Derivatives, assets 68  
Total assets 1,042  
Derivatives, liabilities   (60)
Fair Value, Inputs, Level 3 [Member]    
Deferred compensation plan
Derivatives, assets  
Total assets  
Derivatives, liabilities