Note 4 - Loans and Allowance for Loan Losses - Individually Impaired Loans by Class of Loans (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Unpaid principal balance |
$ 44,632
|
$ 40,122
|
|
| Recorded investment with no allowance |
16,706
|
10,526
|
|
| Recorded investment with allowance |
25,189
|
26,656
|
|
| Total recorded investment |
41,895
|
37,182
|
|
| Allowance for loan losses allocated |
2,948
|
2,894
|
|
| Average |
42,979
|
42,308
|
$ 53,837
|
| Interest income recognized |
2,028
|
1,703
|
2,072
|
| Cash basis interest recognized |
1,943
|
1,684
|
2,037
|
| Real Estate Portfolio Segment [Member] | Real Estate Construction and Land Development [Member] |
|
|
|
| Unpaid principal balance |
9,076
|
9,932
|
|
| Recorded investment with no allowance |
2,599
|
3,875
|
|
| Recorded investment with allowance |
3,800
|
3,372
|
|
| Total recorded investment |
6,399
|
7,247
|
|
| Allowance for loan losses allocated |
759
|
556
|
|
| Average |
7,706
|
9,409
|
13,557
|
| Interest income recognized |
310
|
343
|
424
|
| Cash basis interest recognized |
298
|
337
|
423
|
| Real Estate Portfolio Segment [Member] | Real Estate Mortgage Residential [Member] |
|
|
|
| Unpaid principal balance |
9,930
|
8,655
|
|
| Recorded investment with no allowance |
4,388
|
2,502
|
|
| Recorded investment with allowance |
5,590
|
6,024
|
|
| Total recorded investment |
9,978
|
8,526
|
|
| Allowance for loan losses allocated |
1,503
|
1,278
|
|
| Average |
9,146
|
9,810
|
11,254
|
| Interest income recognized |
491
|
448
|
550
|
| Cash basis interest recognized |
465
|
438
|
535
|
| Real Estate Portfolio Segment [Member] | Real Estate Mortgage Farmland and Other Commercial Enterprises [Member] |
|
|
|
| Unpaid principal balance |
25,045
|
20,980
|
|
| Recorded investment with no allowance |
9,699
|
4,149
|
|
| Recorded investment with allowance |
15,235
|
16,703
|
|
| Total recorded investment |
24,934
|
20,852
|
|
| Allowance for loan losses allocated |
304
|
681
|
|
| Average |
25,557
|
22,439
|
28,711
|
| Interest income recognized |
1,197
|
890
|
1,088
|
| Cash basis interest recognized |
1,153
|
887
|
1,070
|
| Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |
|
|
|
| Unpaid principal balance |
435
|
399
|
|
| Recorded investment with no allowance |
20
|
|
|
| Recorded investment with allowance |
418
|
400
|
|
| Total recorded investment |
438
|
400
|
|
| Allowance for loan losses allocated |
236
|
223
|
|
| Average |
419
|
523
|
255
|
| Interest income recognized |
23
|
16
|
6
|
| Cash basis interest recognized |
21
|
16
|
5
|
| Consumer Portfolio Segment [Member] | Consumer Unsecured [Member] |
|
|
|
| Unpaid principal balance |
146
|
156
|
|
| Recorded investment with no allowance |
|
|
|
| Recorded investment with allowance |
146
|
157
|
|
| Total recorded investment |
146
|
157
|
|
| Allowance for loan losses allocated |
146
|
156
|
|
| Average |
151
|
127
|
54
|
| Interest income recognized |
7
|
6
|
4
|
| Cash basis interest recognized |
$ 6
|
$ 6
|
4
|
| Consumer Portfolio Segment [Member] | Consumer Secured [Member] |
|
|
|
| Average |
|
|
6
|
| Interest income recognized |
|
|
|
| Cash basis interest recognized |
|
|
|