Note 17 - Segment Reporting (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
 
  
Retail and
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Commercial
    
Mortgage
    
Receivables
    
Elimination
  
 
 
 
 
 
  
Banking
    
Division (1)
    
Factoring
    
Entries (2)
    
Total
  
For the Twelve Months Ended December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest income
   $
64,256
     
489
     
11,762
     
(1,944
 )    
74,563
 
Interest expense
    
7,181
     
200
     
1,944
     
(1,944
 )    
7,381
 
Net interest income
    
57,075
     
289
     
9,818
     
-
     
67,182
 
Provision for loan and lease losses
    
2,325
     
-
     
923
     
-
     
3,248
 
Noninterest income
    
5,848
     
8,039
     
69
     
-
     
13,956
 
Noninterest expense
    
37,280
     
6,604
     
5,195
     
-
     
49,079
 
Net earnings before tax and noncontrolling interest
    
23,318
     
1,724
     
3,769
     
-
     
28,811
 
Income tax expense
    
7,901
     
655
     
838
     
-
     
9,394
 
Noncontrolling interest
    
-
     
-
     
(1,564
 )    
-
     
(1,564
 )
Net earnings attributable to National Commerce Corporation
   $
15,417
     
1,069
     
1,367
     
-
     
17,853
 
                                         
Total assets as of December 31, 2016
 
$
1,903,602
 
 
 
15,373
 
 
 
105,812
 
 
 
(74,003
 )
 
 
1,950,784
 
                                         
For the Twelve Months Ended December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest income
   $
44,072
     
385
     
12,400
     
(2,012
 )    
54,845
 
Interest expense
    
4,670
     
126
     
2,012
     
(2,012
 )    
4,796
 
Net interest income
    
39,402
     
259
     
10,388
     
-
     
50,049
 
Provision for loan and lease losses
    
1,158
     
-
     
(45
 )    
-
     
1,113
 
Noninterest income
    
2,340
     
6,070
     
49
     
-
     
8,459
 
Noninterest expense
    
29,741
     
5,278
     
5,226
     
-
     
40,245
 
Net earnings before tax and noncontrolling interest
    
10,843
     
1,051
     
5,256
     
-
     
17,150
 
Income tax expense
    
3,866
     
399
     
1,211
     
-
     
5,476
 
Noncontrolling interest
    
-
     
-
     
(2,069
 )    
-
     
(2,069
 )
Net earnings attributable to National Commerce Corporation
   $
6,977
     
652
     
1,976
     
-
     
9,605
 
                                         
Total assets as of December 31, 2015
 
$
1,718,807
 
 
 
15,020
 
 
 
90,464
 
 
 
(60,922
 )
 
 
1,763,369
 
                                         
For the Twelve Months Ended December 31, 2014
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest income
   $
27,144
     
410
     
4,345
     
(557
 )    
31,342
 
Interest expense
    
2,746
     
123
     
731
     
(731
 )    
2,869
 
Net interest income
    
24,398
     
287
     
3,614
     
174
     
28,473
 
Provision for loan and lease losses
    
174
     
-
     
804
     
-
     
978
 
Noninterest income
    
811
     
4,199
     
22
     
-
     
5,032
 
Noninterest expense
    
18,048
     
3,681
     
1,724
     
-
     
23,453
 
Net earnings before tax and noncontrolling interest
    
6,987
     
805
     
1,108
     
174
     
9,074
 
Income tax expense
    
2,627
     
306
     
226
     
-
     
3,159
 
Noncontrolling interest
    
-
     
-
     
(512
 )    
-
     
(512
 )
Net earnings attributable to National Commerce Corporation
   $
4,360
     
499
     
370
     
174
     
5,403
 
                                         
Total assets as of December 31, 2014
 
$
1,099,191
 
 
 
9,329
 
 
 
105,330
 
 
 
(75,424
 )
 
 
1,138,426