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Note 4 - Securities Available for Sale (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Available-for-sale Securities [Table Text Block]
 
(Dollars in thousands)
 
Amortized
Cost
   
Gross
Unrealized
Gains
   
Gross
Unrealized
Losses
   
Fair Value
 
December 31, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mortgage-backed securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Federal National Mortgage Association (FNMA)
 
$
46,604
   
 
47
   
 
(65
)
 
 
46,586
 
Federal Home Loan Mortgage Corporation (FHLMC)
 
 
8,004
   
 
88
   
 
0
   
 
8,092
 
Collateralized mortgage obligations:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FNMA
 
 
169
   
 
4
   
 
0
   
 
173
 
   
 
54,777
   
 
139
   
 
(65
)
 
 
54,851
 
Other marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Government agency obligations
 
 
49,974
   
 
39
   
 
(21
)
 
 
49,992
 
Municipal obligations
 
 
1,969
   
 
7
   
 
0
   
 
1,976
 
Corporate obligations
 
 
108
   
 
0
   
 
0
   
 
108
 
Corporate preferred stock
 
 
700
   
 
0
   
 
(35
)
 
 
665
 
   
 
52,751
   
 
46
   
 
(56
)
 
 
52,741
 
   
$
107,528
   
 
185
   
 
(121
)
 
 
107,592
 
                                 
December 31, 2018
                               
Mortgage-backed securities:
                               
FNMA
  $
3,886
     
0
     
(117
)    
3,769
 
FHLMC
   
4,074
     
0
     
(10
)    
4,064
 
Collateralized mortgage obligations:
                               
FNMA
   
199
     
0
     
(9
)    
190
 
     
8,159
     
0
     
(136
)    
8,023
 
Other marketable securities:
                               
U.S. Government agency obligations
   
69,971
     
0
     
(1,236
)    
68,735
 
Municipal obligations
   
2,378
     
1
     
(10
)    
2,369
 
Corporate obligations
   
173
     
0
     
(1
)    
172
 
Corporate preferred stock
   
700
     
0
     
(140
)    
560
 
     
73,222
     
1
     
(1,387
)    
71,836
 
    $
81,381
     
1
     
(1,523
)    
79,859
 
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
   
Payments Due by Period
 
(Dollars in thousands)
 
Total
   
Less than 1
Year
   
1-3 Years
   
4-5 Years
   
More than 5
Years
 
Contractual Obligations:
                                       
Annual rental commitments under non-cancellable operating leases
  $
4,266
     
887
     
1,829
     
1,536
     
14
 
Total contractual obligations
  $
4,266
     
887
     
1,829
     
1,536
     
14
 
Schedule of Unrealized Loss on Investments [Table Text Block]
   
Less Than Twelve Months
   
Twelve Months or More
   
Total
 
(Dollars in thousands)
 
# of
Investments
   
Fair
Value
   
Unrealized
Losses
   
# of
Investments
   
Fair
Value
   
Unrealized
Losses
   
Fair
Value
   
Unrealized
Losses
 
December 31, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Mortgage backed securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FNMA
 
 
4
   
$
12,143
   
 
(65
)
 
 
0
   
$
0
   
 
0
   
$
12,143
   
 
(65
)
Other marketable securities:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Government agency obligations
 
 
0
   
 
0
   
 
0
   
 
4
   
 
19,972
   
 
(21
)
 
 
19,972
   
 
(21
)
Corporate preferred stock
 
 
0
   
 
0
   
 
0
   
 
1
   
 
665
   
 
(35
)
 
 
665
   
 
(35
)
Total temporarily impaired securities
 
 
4
   
$
12,143
   
 
(65
)
 
 
5
   
$
20,637
   
 
(56
)
 
$
32,780
   
 
(121
)
                                                                 
December 31, 201
8
                                                               
Mortgage backed securities:
                                                               
FNMA
   
0
    $
0
     
0
     
2
    $
3,769
     
(117
)   $
3,769
     
(117
)
FHLMC
   
1
     
4,060
     
(10
)    
0
     
0
     
0
     
4,060
     
(10
)
Collateralized mortgage obligations:
                                                               
FNMA
   
0
     
0
     
0
     
1
     
190
     
(9
)    
190
     
(9
)
Other marketable securities:
                                                               
U.S. Government agency obligations
   
0
     
0
     
0
     
14
     
68,735
     
(1,236
)    
68,735
     
(1,236
)
Municipal obligations
   
3
     
498
     
(2
)    
8
     
1,467
     
(8
)    
1,965
     
(10
)
Corporate obligations
   
0
     
0
     
0
     
1
     
172
     
(1
)    
172
     
(1
)
Corporate preferred stock
   
0
     
0
     
0
     
1
     
560
     
(140
)    
560
     
(140
)
Total temporarily impaired securities
   
4
    $
4,558
     
(12
)    
27
    $
74,893
     
(1,511
)   $
79,451
     
(1,523
)
Available-for-sale Securities [Member]  
Notes Tables  
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
(Dollars in thousands)
 
Amortized
Cost
   
Fair
Value
 
Due one year or less
  $
46,931
     
46,962
 
Due after one year through five years
   
44,262
     
44,308
 
Due after five years through ten years
   
14,991
     
15,011
 
Due after ten years
   
1,344
     
1,311
 
Total
  $
107,528
     
107,592