XML 62 R48.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 15 - Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Net Funded Status [Table Text Block]
   
 
2017(1)
    
 
2016(1)
  
                 
Plan Funded Status per valuation report
    
109.55
 %    
109.34
 %