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Note 12 - Marketable Securities
 12 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
12.
  
Marketable Securities:
 
The amortized cost and gross unrealized gains/(losses) of securities available-for-sale and held-to-maturity at
December
31,
2016
and
2015,
are as follows (in thousands):
 
 
 
December 31, 201
6
 
 
 
Amortized Cost
 
 
Gross Unrealized
Gains
 
 
Total
 
Available-for-sale:
                        
Equity securities
   $
6,096
     $
406
     $
6,502
  
Held-to-maturity:
                        
Debt securities
    
1,599
      
-
      
1,599
  
Total marketable securities
   $
7,695
     $
406
     $
8,101
  
 
 
 
December 31, 201
5
 
 
 
Amortized Cost
 
 
Gross Unrealized
Gains/
(
Losses
)
 
 
Total
 
Available-for-sale:
                        
Equity securities
   $
5,511
     $
398
     $
5,909
  
Held-to-maturity:
                        
Debt securities
    
1,656
      
(1
 )    
1,655
  
Total marketable securities
   $
7,167
     $
397
     $
7,564
  
 
During
2015,
the Company received
$76.2
million in proceeds from the sale or redemption of certain marketable securities. In connection with these transactions, the Company recognized
$39.9
million of realizable gains.
 
As of
December
31,
2016,
the contractual maturities of debt securities classified as held-to-maturity are within the next
five
years. Actual maturities
may
differ from contractual maturities as issuers
may
have the right to prepay debt obligations with or without prepayment penalties.