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Note P - Regulatory Matters (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]
   
Actual
   
Minimum
Regulatory
   
Minimum
To Be Well
 
201
7
 
Amount
   
Ratio
   
Capital Ratio
   
Capitalized
(
1)
 
Total capital (to risk weighted assets)
                               
Consolidated
  $
118,456
     
16.6
%
   
8.0%
     
N/A
 
Bank
   
107,929
     
15.3
     
8.0
     
10.0%
 
Common equity Tier 1 capital (to risk weighted assets)
                               
Consolidated
   
102,457
     
14.3
     
4.5
     
N/A
 
Bank
   
100,759
     
14.3
     
4.5
     
6.5
 
Tier 1 capital (to risk weighted assets)
                               
Consolidated
   
110,957
     
15.5
     
6.0
     
N/A
 
Bank
   
100,759
     
14.3
     
6.0
     
8.0
 
Tier 1 capital (to average assets)
                               
Consolidated
   
110,957
     
11.0
     
4.0
     
N/A
 
Bank
   
100,759
     
10.1
     
4.0
     
5.0
 
   
Actual
   
Minimum
Regulatory
   
Minimum
To Be Well
Capitalized Under
Prompt Corrective
Action Regulations
 
   
Amount
   
Ratio
   
Capital
   
Amount
   
Ratio
 
2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total capital (to risk weighted assets)
                                       
Consolidated
  $
113,515
     
16.4
%
   
N/A
     
N/A
     
N/A
 
Bank
   
104,317
     
15.3
     
8.0
%   $
68,289
     
10.0
%
Common equity Tier 1 capital (to risk weighted assets)
                                       
Consolidated
   
97,316
     
14.0
     
N/A
     
N/A
     
N/A
 
Bank
   
96,946
     
14.2
     
4.5
     
44,388
     
6.5
 
Tier 1 capital (to risk weighted assets)
                                       
Consolidated
   
105,816
     
15.3
     
N/A
     
N/A
     
N/A
 
Bank
   
96,946
     
14.2
     
6.0
     
54,631
     
8.0
 
Tier 1 capital (to average assets)
                                       
Consolidated
   
105,816
     
11.2
     
N/A
     
N/A
     
N/A
 
Bank
   
96,946
     
10.4
     
4.0
     
46,461
     
5.0