Note 20 - Subsequent Events (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
   
As Recorded
   
Fair Value
     
As Recorded
 
   
By Reunion
   
Adjustments
     
By the Company
 
Cash and cash equivalents
  $
3,136
     
-
 
 
   
3,136
 
Investment securities
   
19,261
     
(135
)
a
   
19,126
 
Loans
   
265,492
     
(7,078
)
b
   
258,414
 
Allowance for loan losses
   
2,429
     
(2,429
)
c
   
-
 
Net loans
   
263,063
     
(4,649
)
 
   
258,414
 
Premises and equipment, net
   
3,922
     
-
 
 
   
3,922
 
Core deposit intangible
   
-
     
1,539
 
d
   
1,539
 
Bank-owned life insurance
   
4,098
     
-
 
 
   
4,098
 
Other real estate and repossessions
   
92
     
-
 
 
   
92
 
Other assets
   
21,371
     
(2,003
)
e
   
19,368
 
Total assets
  $
314,943
     
(5,248
)
 
   
309,695
 
                           
Non-interest bearing deposits
  $
80,382
     
-
 
 
   
80,382
 
Interest-bearing deposits
   
196,957
     
320
 
f
   
197,277
 
Total deposits
   
277,339
     
320
 
 
   
277,659
 
                           
Other liabilities
   
10,561
     
(1,084
)
e
   
9,477
 
Total liabilities
   
287,900
     
(764
)
 
   
287,136
 
                           
Net identifiable assets acquired over liabilities assumed
   
27,043
     
(4,484
)
 
   
22,559
 
                           
Goodwill
   
-
     
20,639
 
 
   
20,639
 
                           
Net assets acquired over liabilities assumed
  $
27,043
     
16,155
 
 
   
43,198
 
                           
                           
Consideration:
 
 
 
 
 
 
 
 
 
 
 
 
 
                           
Shares of common stock issued
   
 
     
1,339,129
 
 
   
 
 
Estimated value per share of the Company's stock
   
 
    $
25.11
 
 
   
 
 
                           
Fair value of Company stock issued
   
 
     
33,626
 
 
   
 
 
Cash paid for shares and in lieu of fractional shares
   
 
     
7,369
 
 
   
 
 
Value of assumed stock options
   
 
     
2,203
 
 
   
 
 
                           
Fair value of total consideration transferred
   
 
    $
43,198
 
 
   
 
 
Acquisition of Private Bancshares [Member]  
Notes Tables  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
   
As Recorded
   
Fair Value
     
As Recorded
 
   
By Private Bancshares
   
Adjustments
     
By the Company
 
Cash and cash equivalents
  $
17,793
     
-
 
 
   
17,793
 
Investment securities
   
10,001
     
(28
)
a
   
9,973
 
Mortgage loans held-for-sale
   
24,628
     
 
 
 
   
24,628
 
Loans
   
266,750
     
(6,173
)
b
   
260,577
 
Allowance for loan losses
   
3,306
     
(3,306
)
c
   
-
 
Net loans
   
263,444
     
(2,867
)
 
   
260,577
 
Premises and equipment, net
   
558
     
(95
)
d
   
463
 
Core deposit intangible
   
 
     
2,979
 
e
   
2,979
 
Bank-owned life insurance
   
3,294
     
-
 
 
   
3,294
 
Other real estate and repossessions
   
 
     
-
 
 
   
-
 
Other assets
   
2,744
     
1,770
 
f
   
4,514
 
Total assets
  $
322,462
     
1,759
 
 
   
324,221
 
                           
Non-interest bearing deposits
  $
135,822
     
-
 
 
   
135,822
 
Interest-bearing deposits
   
150,260
     
131
 
g
   
150,391
 
Total deposits
   
286,082
     
131
 
 
   
286,213
 
                           
Repurchase liability
   
2,201
     
-
 
 
   
2,201
 
Other liabilities
   
3,906
     
173
 
h
   
4,079
 
Total liabilities
   
292,189
     
304
 
 
   
292,493
 
                           
Net identifiable assets acquired over liabilities assumed
   
30,273
     
1,455
 
 
   
31,728
 
Goodwill
   
-
     
47,809
 
 
   
47,809
 
Net assets acquired over liabilities assumed
  $
30,273
     
49,264
 
 
   
79,537
 
                           
                           
Consideration:
 
 
 
 
 
 
 
 
 
 
 
 
 
                           
Shares of common stock issued
   
 
     
1,809,189
 
 
   
 
 
Estimated value per share of the Company's stock
   
 
    $
37.15
 
 
   
 
 
                           
Fair value of Company stock issued
   
 
     
67,211
 
 
   
 
 
Cash paid for shares and in lieu of fractional shares
   
 
     
8,322
 
 
   
 
 
Value of assumed stock options and restricted stock units
   
 
     
4,004
 
 
   
 
 
                           
Fair value of total consideration transferred
   
 
    $
79,537