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Note 2 - Investment Securities
6 Months Ended
Jun. 30, 2017
Notes to Financial Statements  
Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block]
2.
Investment Securities
 
Debt and equity securities have been classified in the consolidated balance sheets according to management’s intent. Investment securities at
June 30, 2017
and
December 31, 2016
are summarized as follows:
 
        Gross   Gross    
    Amortized   Unrealized   Unrealized   Fair
(In thousands)   Cost   Gains   Losses   Value
                 
June 30, 2017                                
Securities available for sale:                                
Agency mortgage-backed securities   $
120,676
    $
54
    $
1,233
    $
119,497
 
Agency CMO    
14,623
     
7
     
177
     
14,453
 
Other debt securities:                                
Agency notes and bonds    
71,457
     
3
     
437
     
71,023
 
Municipal obligations    
70,395
     
1,652
     
282
     
71,765
 
Subtotal - debt securities    
277,151
     
1,716
     
2,129
     
276,738
 
                                 
Mutual funds    
424
     
0
     
0
     
424
 
                                 
Total securities available for sale   $
277,575
    $
1,716
    $
2,129
    $
277,162
 
                                 
Securities held to maturity:                                
Agency mortgage-backed securities   $
2
    $
0
    $
0
    $
2
 
                                 
Total securities held to maturity   $
2
    $
0
    $
0
    $
2
 
                                 
December 31, 2016                                
Securities available for sale:                                
Agency mortgage-backed securities   $
110,493
    $
93
    $
2,349
    $
108,237
 
Agency CMO    
16,293
     
23
     
288
     
16,028
 
Other debt securities:                                
Agency notes and bonds    
69,407
     
14
     
759
     
68,662
 
Municipal obligations    
63,189
     
783
     
1,129
     
62,843
 
Subtotal - debt securities    
259,382
     
913
     
4,525
     
255,770
 
                                 
Mutual funds    
74
     
0
     
0
     
74
 
                                 
Total securities available for sale   $
259,456
    $
913
    $
4,525
    $
255,844
 
                                 
Securities held to maturity:                                
Agency mortgage-backed securities   $
2
    $
0
    $
0
    $
2
 
                                 
Total securities held to maturity   $
2
    $
0
    $
0
    $
2
 
 
Agency notes and bonds, agency mortgage-backed securities and agency collateralized mortgage obligations (“CMO”) include securities issued by the Government National Mortgage Association (“GNMA”), a U.S. government agency, and the Federal National Mortgage Association (“FNMA”), the Federal Home Loan Mortgage Corporation (“FHLMC”) and the Federal Home Loan Bank (“FHLB”), which are government-sponsored enterprises.
 
The amortized cost and fair value of debt securities as of
June 30, 2017,
by contractual maturity, are shown below. Expected maturities of mortgage-backed securities and CMO
may
differ from contractual maturities because the mortgages underlying the obligations
may
be prepaid without penalty.
 
    Securities Available for Sale   Securities Held to Maturity
    Amortized   Fair   Amortized   Fair
    Cost   Value   Cost   Value
(In thousands)                
                 
Due in one year or less   $
1,992
    $
1,992
    $
0
    $
0
 
Due after one year through five years    
75,703
     
75,373
     
0
     
0
 
Due after five years through ten years    
20,555
     
20,890
     
 
     
 
 
Due after ten years    
43,602
     
44,533
     
0
     
0
 
     
141,852
     
142,788
     
0
     
0
 
Mortgage-backed securities and CMO    
135,299
     
133,950
     
2
     
2
 
                                 
    $
277,151
    $
276,738
    $
2
    $
2
 
 
Information pertaining to investment securities available for sale with gross unrealized losses at
June 30, 2017,
aggregated by investment category and the length of time that individual investment securities have been in a continuous position, follows. At
June 30, 2017,
the Company did
not
have any securities held to maturity with an unrealized loss.
 
    Number of       Gross
    Investment   Fair   Unrealized
    Positions   Value   Losses
(Dollars in thousands)                        
                         
Continuous loss position less than twelve months:                        
Agency notes and bonds    
18
    $
50,419
    $
242
 
Agency CMO    
9
     
7,385
     
79
 
Agency mortgage-backed securities    
69
     
91,621
     
1,070
 
Muncipal obligations    
25
     
13,713
     
234
 
                         
Total less than twelve months    
121
     
163,138
     
1,625
 
                         
Continuous loss position more than twelve months:                        
Agency notes and bonds    
5
    $
18,805
    $
195
 
Agency CMO    
9
     
5,735
     
98
 
Agency mortgage-backed securities    
5
     
9,930
     
163
 
Muncipal obligations    
6
     
2,435
     
48
 
                         
Total more than twelve months    
25
     
36,905
     
504
 
                         
Total securities available for sale    
146
    $
200,043
    $
2,129
 
 
Management evaluates securities for other-than-temporary impairment at least quarterly, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (
1
) the length of time and the extent to which the fair value has been less than cost, (
2
) the financial condition and near-term prospects of the issuer, and (
3
) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recover in fair value.
 
At
June 30, 2017,
the U.S. government agency debt securities, including agency notes and bonds, mortgage-backed securities and CMO, and municipal obligations in a loss position had depreciated approximately
1.1%
from the amortized cost basis. All of the U.S. government agency securities and municipal obligations are issued by U.S. government agencies, government-sponsored enterprises and municipal governments, or are secured by
first
mortgage loans and municipal project revenues. These unrealized losses related principally to current interest rates for similar types of securities. In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government, its agencies or other governments, whether downgrades by bond rating agencies have occurred, and the results of reviews of the issuer’s financial condition. As the Company has the ability to hold the debt securities until maturity, or the foreseeable future if classified as available for sale,
no
declines are deemed to be other-than-temporary.
 
While management does
not
anticipate any credit-related impairment losses at
June 30, 2017,
additional deterioration in market and economic conditions
may
have an adverse impact on credit quality in the future.
 
During the
three
and
six
months ended
June 30, 2017,
the Company realized gross gains on sales of available for sale agency mortgage backed securities and CMO’s of
$58,000
and
$3,000,
respectively. During the
three
and
six
months ended
June 30, 2016,
the Company realized gross gains on sales of available for sale municipal securities of
$176,000.