Note 2 - Significant Accounting Policies and Recent Accounting Pronouncements (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Restricted Cash and Cash Equivalents [Table Text Block]
   
December 31,
  
 
 
2016
 
 
2015
 
Collateral for letters of credit - Reinsured claims losses
   $
2,265
    $
3,033
 
Escrow/Trust - Reinsured claims losses
    
11,865
     
17,023
 
Restricted cash for reinsured claims losses
    
14,130
     
20,056
 
Less current portion
    
3,192
      
4,012
 
Restricted cash, less current portion
   $
10,938
     $
16,044