Note 4 - Loans - Summary of Impaired Loans by Class of Loans (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Recorded investment without related allowance |
$ 187
|
$ 188
|
| Unpaid principal balance without related allowance |
255
|
233
|
| Average recorded investment without related allowance |
296
|
1,667
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
980
|
| Recorded investment |
187
|
188
|
| Unpaid principal balance |
255
|
233
|
| Average recorded investment |
296
|
2,647
|
| Commercial, Financial and Agricultural Portfolio Segment [Member] |
|
|
| Recorded investment without related allowance |
|
|
| Unpaid principal balance without related allowance |
|
|
| Average recorded investment without related allowance |
|
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
|
| Recorded investment |
|
|
| Unpaid principal balance |
|
|
| Average recorded investment |
|
|
| Factored Commercial Receivables Portfolio Segment [Member] |
|
|
| Recorded investment without related allowance |
|
|
| Unpaid principal balance without related allowance |
|
|
| Average recorded investment without related allowance |
|
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
653
|
| Recorded investment |
|
|
| Unpaid principal balance |
|
|
| Average recorded investment |
|
653
|
| Real Estate Portfolio Segment [Member] | Mortgage Loans [Member] |
|
|
| Recorded investment without related allowance |
180
|
19
|
| Unpaid principal balance without related allowance |
213
|
55
|
| Average recorded investment without related allowance |
168
|
1,523
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
250
|
| Recorded investment |
180
|
19
|
| Unpaid principal balance |
213
|
55
|
| Average recorded investment |
168
|
1,773
|
| Real Estate Portfolio Segment [Member] | Construction Loans [Member] |
|
|
| Recorded investment without related allowance |
|
169
|
| Unpaid principal balance without related allowance |
|
178
|
| Average recorded investment without related allowance |
97
|
105
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
77
|
| Recorded investment |
|
169
|
| Unpaid principal balance |
|
178
|
| Average recorded investment |
97
|
182
|
| Consumer Portfolio Segment [Member] |
|
|
| Recorded investment without related allowance |
7
|
|
| Unpaid principal balance without related allowance |
42
|
|
| Average recorded investment without related allowance |
31
|
39
|
| Recorded investment with related allowance |
|
|
| Unpaid principal balance with related allowance |
|
|
| Related allowance |
|
|
| Average recorded investment with related allowance |
|
|
| Recorded investment |
7
|
|
| Unpaid principal balance |
42
|
|
| Average recorded investment |
$ 31
|
$ 39
|