Note 4 - Loans (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
   
December 31, 2016
   
December 31, 2015
 
Commercial, financial, and agricultural
  $
170,985
     
196,732
 
Factored commercial receivables
   
83,901
     
67,628
 
Real estate - mortgage
   
1,056,214
     
881,556
 
Real estate - construction
   
155,813
     
152,862
 
Consumer
   
19,060
     
21,116
 
     
1,485,973
     
1,319,894
 
Less: Unearned fees
   
(489
   
(480
Total loans
   
1,485,484
     
1,319,414
 
Allowance for loan losses
   
(12,113
)    
(9,842
)
Total net loans
  $
1,473,371
     
1,309,572
 
Allowance for Credit Losses on Financing Receivables [Table Text Block]
   
Commercial,
   
Factored
                                         
   
financial, and
   
commercial
   
Real estate -
   
Real estate -
                         
Year ended December 31, 2016
 
agricultural
   
receivables
   
mortgage
   
construction
   
Consumer
   
Unallocated
   
Total
 
Balance, beginning of year
  $
1,345
     
500
     
5,525
     
1,412
     
236
     
824
     
9,842
 
Provisions charged to operating expense
   
183
     
923
     
2,879
     
(52
)    
139
     
(824
)    
3,248
 
Loans charged off
   
(16
)    
(2,331
)    
(53
)    
-
     
(197
)    
-
     
(2,597
)
Recoveries
   
76
     
1,408
     
114
     
9
     
13
     
-
     
1,620
 
Balance, December 31, 2016
  $
1,588
     
500
     
8,465
     
1,369
     
191
     
-
     
12,113
 
                                                         
Ending balance, individually evaluated
for impairment
  $
-
     
-
     
-
     
-
     
-
     
-
     
-
 
Ending balance, collectively evaluated
for impairment
  $
1,588
     
500
     
8,465
     
1,369
     
191
     
-
     
12,113
 
Loans:
                                                       
Individually evaluated for impairment
  $
-
     
-
     
180
     
-
     
7
     
-
     
187
 
Collectively evaluated for impairment
  $
170,773
     
83,901
     
1,047,187
     
155,583
     
18,835
     
-
     
1,476,279
 
Acquired loans with deteriorated
credit quality
  $
212
     
-
     
8,847
     
230
     
218
     
-
     
9,507
 
   
Commercial,
   
Factored
                                         
   
financial, and
   
commercial
   
Real estate -
   
Real estate -
                         
Year ended December 31, 2015
 
agricultural
   
receivables
   
mortgage
   
construction
   
Consumer
   
Unallocated
   
Total
 
Balance, beginning of year
  $
1,523
     
955
     
5,047
     
647
     
562
     
1,068
     
9,802
 
Provisions charged to operating expense
   
(226
)    
(44
)    
1,114
     
680
     
(167
)    
(244
)    
1,113
 
Loans charged off
   
(31
)    
(2,316
)    
(1,402
)    
-
     
(164
)    
-
     
(3,913
)
Recoveries
   
79
     
1,905
     
766
     
85
     
5
     
-
     
2,840
 
Balance, December 31, 2015
  $
1,345
     
500
     
5,525
     
1,412
     
236
     
824
     
9,842
 
                                                         
Ending balance, individually evaluated
for impairment
  $
-
     
-
     
-
     
-
     
-
     
-
     
-
 
Ending balance, collectively evaluated
for impairment
  $
1,345
     
500
     
5,525
     
1,412
     
236
     
824
     
9,842
 
Loans:
                                                       
Individually evaluated for impairment
  $
-
     
-
     
19
     
169
     
-
     
-
     
188
 
Collectively evaluated for impairment
  $
196,270
     
67,628
     
872,265
     
152,254
     
20,846
     
-
     
1,309,263
 
Acquired loans with deteriorated
credit quality
  $
462
     
-
     
9,272
     
439
     
270
     
-
     
10,443
 
   
Commercial,
   
Factored
                                         
   
financial, and
   
commercial
   
Real estate -
   
Real estate -
                         
Year ended December 31, 2014
 
agricultural
   
receivables
   
mortgage
   
construction
   
Consumer
   
Unallocated
   
Total
 
Balance, beginning of year
  $
1,398
     
-
     
4,449
     
964
     
243
     
2,065
     
9,119
 
Provisions charged to operating expense
   
61
     
978
     
988
     
(350
)    
298
     
(997
)    
978
 
Loans charged off
   
(3
)    
(656
)    
(429
)    
-
     
-
     
-
     
(1,088
)
Recoveries
   
67
     
633
     
39
     
33
     
21
     
-
     
793
 
Balance, December 31, 2014
  $
1,523
     
955
     
5,047
     
647
     
562
     
1,068
     
9,802
 
                                                         
Ending balance, individually evaluated
for impairment
  $
-
     
473
     
350
     
50
     
-
     
-
     
873
 
Ending balance, collectively evaluated
for impairment
  $
1,523
     
482
     
4,697
     
597
     
562
     
1,068
     
8,929
 
Loans:
                                                       
Individually evaluated for impairment
  $
-
     
1,605
     
2,078
     
198
     
-
     
-
     
3,881
 
Collectively evaluated for impairment
  $
130,656
     
80,995
     
568,363
     
82,551
     
13,627
     
-
     
876,192
 
Acquired loans with deteriorated
credit quality
  $
1,001
     
-
     
6,827
     
914
     
335
     
-
     
9,077
 
Impaired Financing Receivables [Table Text Block]
           
Unpaid
           
Average
 
   
Recorded
   
Principal
   
Related
   
Recorded
 
December 31, 2016
 
Investment
   
Balance
   
Allowance
   
Investment
 
Impaired loans without related allowance:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
-
 
Real estate - mortgage
   
180
     
213
     
-
     
168
 
Real estate - construction
   
-
     
-
     
-
     
97
 
Consumer
   
7
     
42
     
-
     
31
 
Total
  $
187
     
255
     
-
     
296
 
                                 
Impaired loans with related allowance:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
-
 
Real estate - mortgage
   
-
     
-
     
-
     
-
 
Real estate - construction
   
-
     
-
     
-
     
-
 
Consumer
   
-
     
-
     
-
     
-
 
Total
  $
-
     
-
     
-
     
-
 
                                 
Total impaired loans:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
-
 
Real estate - mortgage
   
180
     
213
     
-
     
168
 
Real estate - construction
   
-
     
-
     
-
     
97
 
Consumer
   
7
     
42
     
-
     
31
 
Total
  $
187
     
255
     
-
     
296
 
           
Unpaid
           
Average
 
   
Recorded
   
Principal
   
Related
   
Recorded
 
December 31, 2015
 
Investment
   
Balance
   
Allowance
   
Investment
 
Impaired loans without related allowance:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
-
 
Real estate - mortgage
   
19
     
55
     
-
     
1,523
 
Real estate - construction
   
169
     
178
     
-
     
105
 
Consumer
   
-
     
-
     
-
     
39
 
Total
  $
188
     
233
     
-
     
1,667
 
                                 
Impaired loans with related allowance:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
653
 
Real estate - mortgage
   
-
     
-
     
-
     
250
 
Real estate - construction
   
-
     
-
     
-
     
77
 
Consumer
   
-
     
-
     
-
     
-
 
Total
  $
-
     
-
     
-
     
980
 
                                 
Total impaired loans:
                               
Commercial, financial, and agricultural
  $
-
     
-
     
-
     
-
 
Factored commercial receivables
   
-
     
-
     
-
     
653
 
Real estate - mortgage
   
19
     
55
     
-
     
1,773
 
Real estate - construction
   
169
     
178
     
-
     
182
 
Consumer
   
-
     
-
     
-
     
39
 
Total
  $
188
     
233
     
-
     
2,647
 
Past Due Financing Receivables [Table Text Block]
   
30-59 Days
   
60-89 Days
   
> 90 Days
   
Total
                         
December 31, 2016
 
Past Due
   
Past Due
   
Past Due
   
Past Due
   
Current
   
Total
   
Non-accrual
 
Commercial, financial, and agricultural
  $
13
     
-
     
-
     
13
     
170,972
     
170,985
     
-
 
Factored commercial receivables
   
5,947
     
1,383
     
581
     
7,911
     
75,990
     
83,901
     
-
 
Real estate - mortgage
   
440
     
392
     
2,075
     
2,907
     
1,053,307
     
1,056,214
     
2,718
 
Real estate - construction
   
-
     
-
     
-
     
-
     
155,813
     
155,813
     
98
 
Consumer
   
68
     
-
     
-
     
68
     
18,992
     
19,060
     
21
 
Total
  $
6,468
     
1,775
     
2,656
     
10,899
     
1,475,074
     
1,485,973
     
2,837
 
   
30-59 Days
   
60-89 Days
   
> 90 Days
   
Total
                         
December 31, 2015
 
Past Due
   
Past Due
   
Past Due
   
Past Due
   
Current
   
Total
   
Non-accrual
 
Commercial, financial, and agricultural
  $
21
     
-
     
-
     
21
     
196,711
     
196,732
     
-
 
Factored commercial receivables
   
5,762
     
1,595
     
252
     
7,609
     
60,019
     
67,628
     
-
 
Real estate - mortgage
   
1,707
     
760
     
911
     
3,378
     
878,178
     
881,556
     
3,300
 
Real estate - construction
   
59
     
88
     
-
     
147
     
152,715
     
152,862
     
283
 
Consumer
   
114
     
-
     
34
     
148
     
20,968
     
21,116
     
112
 
Total
  $
7,663
     
2,443
     
1,197
     
11,303
     
1,308,591
     
1,319,894
     
3,695
 
Financing Receivable Credit Quality Indicators [Table Text Block]
December 31, 2016
 
Pass
   
OAEM
   
Substandard
   
Doubtful
   
Total
 
Commercial, financial, and agricultural
  $
168,004
     
1,422
     
1,559
     
-
     
170,985
 
Factored commercial receivables
   
83,901
     
-
     
-
     
-
     
83,901
 
Real estate - mortgage
   
1,047,797
     
2,163
     
3,586
     
2,668
     
1,056,214
 
Real estate - construction
   
155,583
     
-
     
132
     
98
     
155,813
 
Consumer
   
18,499
     
26
     
514
     
21
     
19,060
 
Total
  $
1,473,784
     
3,611
     
5,791
     
2,787
     
1,485,973
 
December 31, 2015
 
Pass
   
OAEM
   
Substandard
   
Doubtful
   
Total
 
Commercial, financial, and agricultural
  $
193,176
     
1,509
     
2,047
     
-
     
196,732
 
Factored commercial receivables
   
67,628
     
-
     
-
     
-
     
67,628
 
Real estate - mortgage
   
870,617
     
2,756
     
4,882
     
3,301
     
881,556
 
Real estate - construction
   
152,255
     
-
     
324
     
283
     
152,862
 
Consumer
   
20,260
     
33
     
712
     
111
     
21,116
 
Total
  $
1,303,936
     
4,298
     
7,965
     
3,695
     
1,319,894