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Note 3 - Investment Securities
 9 Months Ended
Sep. 30, 2017
Notes to Financial Statements  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Note
3.
Investment Securities
 
The following table presents the amortized cost and fair value of investment securities available-for-sale at the dates indicated:
 
    (Dollars in thousands)
    September 30, 2017
    Amortized
Cost		   Gross
Unrealized
Gains		   Gross
Unrealized
Losses		   Fair
Value
                 
U.S. Government Agencies   $
59,622
     $
-
     $
(1,242
 )   $
58,380
  
Obligations of States and Political Subdivisions    
37,616
      
314
      
(122
 )    
37,808
  
Mortgage-Backed Securities - Government-Sponsored Enterprises    
17,890
      
14
      
(45
 )    
17,859
  
Equity Securities - Mutual Funds    
500
      
10
      
-
      
510
  
Equity Securities - Other    
1,253
      
94
      
(15
 )    
1,332
  
Total   $
116,881
     $
432
     $
(1,424
 )   $
115,889
  
 
    December 31, 2016
    Amortized
Cost		   Gross
Unrealized
Gains		   Gross
Unrealized
Losses		   Fair
Value
                 
U.S. Government Agencies   $
67,944
     $
18
     $
(1,806
 )   $
66,156
  
Obligations of States and Political Subdivisions    
35,856
      
366
      
(487
 )    
35,735
  
Mortgage-Backed Securities - Government-Sponsored Enterprises    
2,588
      
31
      
-
      
2,619
  
Equity Securities - Mutual Funds    
500
      
7
      
-
      
507
  
Equity Securities - Other    
1,106
      
91
      
(6
 )    
1,191
  
Total   $
107,994
     $
513
     $
(2,299
 )   $
106,208
  
 
The following tables show the Company’s gross unrealized losses and fair value, aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at the dates indicated:
 
    (Dollars in thousands)
    September 30, 2017
    Less than 12 months   12 Months or Greater   Total
    Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses		   Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses		   Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses
U.S. Government Agencies    
12
     $
33,733
     $
(525
 )    
9
     $
24,646
     $
(717
 )    
21
     $
58,379
     $
(1,242
 )
Obligations of States and Political Subdivisions    
22
      
11,788
      
(80
 )    
7
      
3,489
      
(42
 )    
29
      
15,277
      
(122
 )
Mortgage-Backed Securities - Government Sponsored Enterprises    
4
      
9,191
      
(45
 )    
-
      
-
      
-
      
4
      
9,191
      
(45
 )
Equity Securities - Other    
6
      
483
      
(15
 )    
-
      
-
      
-
      
6
      
483
      
(15
 )
Total    
44
     $
55,195
     $
(665
 )    
16
     $
28,135
     $
(759
 )    
60
     $
83,330
     $
(1,424
 )
                                                                         
 
    December 31, 2016
    Less than 12 months   12 Months or Greater   Total
    Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses		   Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses		   Number
of
Securities		   Fair
Value		   Gross
Unrealized
Losses
U.S. Government Agencies    
23
     $
62,853
     $
(1,806
 )    
-
     $
-
     $
-
      
23
     $
62,853
     $
(1,806
 )
Obligations of States and Political Subdivisions    
39
      
19,749
      
(485
 )    
1
      
260
      
(2
 )    
40
      
20,009
      
(487
 )
Equity Securities - Other    
2
      
160
      
(6
 )    
-
      
-
      
-
      
2
      
160
      
(6
 )
Total    
64
     $
82,762
     $
(2,297
 )    
1
     $
260
     $
(2
 )    
65
     $
83,022
     $
(2,299
 )
 
For debt securities, the Company does
not
believe any individual unrealized loss as of
September 30, 2017
and
December 31, 2016
represents an other-than-temporary impairment. The Company performs a review of the entire securities portfolio on a quarterly basis to identify securities that
may
indicate an other-than-temporary impairment. The Company’s management considers the length of time and the extent to which the fair value has been less than cost, and the financial condition of the issuer. The securities that are temporarily impaired at
September 30, 2017
and
December 31, 2016
relate principally to changes in interest rates subsequent to the acquisition of the specific securities. The Company does
not
intend to sell or it is
not
more likely than
not
that it will be required to sell any of the securities in an unrealized loss position before recovery of its amortized cost or maturity of the security.
 
The following table presents the scheduled maturities of investment securities as of the date indicated:
 
    (Dollars in thousands)
    September 30, 2017
    Available-for-Sale
    Amortized
Cost		   Fair
Value
Due in One Year or Less   $
2,115
     $
2,126
  
Due after One Year through Five Years    
23,469
      
23,443
  
Due after Five Years through Ten Years    
68,376
      
67,362
  
Due after Ten Years    
22,921
      
22,958
  
Total   $
116,881
     $
115,889
  
 
Equity Securities – Mutual Funds and Equity Securities – Other do
not
have a scheduled maturity date, but have been included in the Due After Ten Years category.