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Note 4 - Debt and Equity Securities (Tables)
3 Months Ended
Mar. 31, 2014
Note 4 - Debt and Equity Securities (Tables) [Line Items]  
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
   
Amortized
Cost
   
Fair Value
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
 
   
(In thousands)
 
Corporate
  $ 110,524     $ 111,925     $ 2,143     $ 742  
Municipals
    128,346       127,482       967       1,831  
Mutual funds
    26,697       26,697       -       -  
Other
    16,313       13,060       -       3,253  
Total other securities
    281,880       279,164       3,110       5,826  
REMIC and CMO
    515,372       513,148       7,142       9,366  
GNMA
    36,884       38,877       2,265       272  
FNMA
    212,014       209,345       2,715       5,384  
FHLMC
    12,753       12,832       238       159  
Total mortgage-backed securities
    777,023       774,202       12,360       15,181  
Total securities available for sale
  $ 1,058,903     $ 1,053,366     $ 15,470     $ 21,007  
   
Amortized
Cost
   
Fair Value
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
 
   
(In thousands)
 
Corporate
  $ 100,362     $ 101,711     $ 2,316     $ 967  
Municipals
    127,967       123,423       93       4,637  
Mutual funds
    21,565       21,565       -       -  
Other
    18,160       14,935       -       3,225  
Total other securities
    268,054       261,634       2,409       8,829  
REMIC and CMO
    494,984       489,670       6,516       11,830  
GNMA
    38,974       40,874       2,325       425  
FNMA
    217,615       212,322       2,233       7,526  
FHLMC
    13,297       13,290       226       233  
Total mortgage-backed securities
    764,870       756,156       11,300       20,014  
Total securities available for sale
  $ 1,032,924     $ 1,017,790     $ 13,709     $ 28,843  
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]
   
Total
   
Less than 12 months
   
12 months or more
 
   
Fair Value
   
Unrealized
Losses
   
Fair Value
   
Unrealized
Losses
   
Fair Value
   
Unrealized
Losses
 
   
(In thousands)
 
Corporate
  $ 49,258     $ 742     $ 29,898     $ 102     $ 19,360     $ 640  
Municipals
    75,298       1,831       54,055       967       21,243       864  
Other
    6,309       3,253       -       -       6,309       3,253  
Total other securities
    130,865       5,826       83,953       1,069       46,912       4,757  
REMIC and CMO
    286,390       9,366       223,865       6,417       62,525       2,949  
GNMA
    9,105       272       9,105       272       -       -  
FNMA
    117,370       5,384       104,021       4,441       13,349       943  
FHLMC
    7,310       159       7,310       159       -       -  
Total mortgage-backed securities
    420,175       15,181       344,301       11,289       75,874       3,892  
Total securitiesavailable for sale
  $ 551,040     $ 21,007     $ 428,254     $ 12,358     $ 122,786     $ 8,649  
   
Total
   
Less than 12 months
   
12 months or more
 
   
Fair Value
   
Unrealized
Losses
   
Fair Value
   
Unrealized
Losses
   
Fair Value
   
Unrealized
Losses
 
   
(In thousands)
 
Corporate
  $ 39,033     $ 967     $ 39,033     $ 967     $ -     $ -  
Municipals
    100,875       4,637       95,958       4,187       4,917       450  
Other
    6,337       3,225       -       -       6,337       3,225  
Total other securities
    146,245       8,829       134,991       5,154       11,254       3,675  
                                                 
REMIC and CMO
    298,165       11,830       279,743       10,650       18,422       1,180  
GNMA
    9,213       425       9,213       425       -       -  
FNMA
    139,999       7,526       131,248       6,654       8,751       872  
FHLMC
    7,478       233       7,478       233       -       -  
Total mortgage-backed  securities
    454,855       20,014       427,682       17,962       27,173       2,052  
Total securities available for sale
  $ 601,100     $ 28,843     $ 562,673     $ 23,116     $ 38,427     $ 5,727  
Schedule of Unrealized Loss on Investments [Table Text Block]
(in thousands)
 
Amortized Cost
   
Fair Value
   
Gross Unrealized
Losses Recorded
In AOCI
   
Ending Credit
Loss Amount
 
                         
Trust preferred securities (1)
  $ 9,262     $ 6,020     $ 3,242     $ 3,738  
Total
  $ 9,262     $ 6,020     $ 3,242     $ 3,738  
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
   
For the three months ended
March 31,
 
   
2014
   
2013
 
   
(In thousands)
 
Beginning balance
  $ 3,738     $ 6,178  
                 
Recognition of actual losses
    -       (169 )
OTTI charges due to credit loss recorded in earnings
    -       -  
Securities sold during the period
    -       -  
Securities where there is an intent to sell or requirement to sell
    -       -  
Ending balance
  $ 3,738     $ 6,009  
Investments Classified by Contractual Maturity Date [Table Text Block]
   
Amortized
Cost
   
Fair Value
 
   
(In thousands)
 
             
Due in one year or less
  $ 42,511     $ 42,705  
Due after one year through five years
    42,142       44,072  
Due after five years through ten years
    59,017       58,257  
Due after ten years
    138,210       134,130  
                 
Total other securities
    281,880       279,164  
Mortgage-backed securities
    777,023       774,202  
                 
Total securities available for sale
  $ 1,058,903     $ 1,053,366  
Realized Gain (Loss) on Investments [Table Text Block]
   
For the three months ended
March 31,
 
   
2014
   
2013
 
   
(In thousands)
 
Gross gains from the sale of securities
  $ -     $ 3,199  
Gross losses from the sale of securities
    -       (341 )
Net gains from the sale of securities
  $ -     $ 2,858  
Trust Preferred Securities [Member]
 
Note 4 - Debt and Equity Securities (Tables) [Line Items]  
Available-for-sale Securities [Table Text Block]
                                 
Deferrals/Defaults
       
Issuer
Type
 
Class
   
Performing
Banks
   
Amortized
Cost
   
Fair
Value
   
Cumulative
Credit Related
OTTI
   
Actual as a
Percentage
of Original
Security
   
Expected
Percentage
of Performing
Collateral
   
Current
Lowest
Rating
 
               
(Dollars in thousands)
                   
                                                 
Single issuer
  n/a     1       300       287       -    
None
   
None
   
BB-
 
Pooled issuer
  B1     15       5,617       3,120       2,196     23.4%     0.0%     C  
Pooled issuer
  C1     16       3,645       2,900       1,542     21.3%     1.5%     C  
Total
              $ 9,562     $ 6,307     $ 3,738