Note 5 - Loans - Impaired Loans (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
| Recorded investment, with no allowance recorded |
$ 1,875
|
$ 3,486
|
| Unpaid principal balance, with no allowance recorded |
2,491
|
5,006
|
| Recorded investment, with a related allowance recorded |
3,729
|
4,475
|
| Unpaid principal balance, with a related allowance recorded |
3,729
|
4,475
|
| Related allowance |
302
|
381
|
| Recorded investment |
5,604
|
7,961
|
| Unpaid principal balance |
6,220
|
9,481
|
| Real Estate Loan [Member] |
|
|
| Recorded investment, with no allowance recorded |
1,802
|
3,362
|
| Unpaid principal balance, with no allowance recorded |
2,386
|
4,850
|
| Recorded investment, with a related allowance recorded |
3,414
|
4,045
|
| Unpaid principal balance, with a related allowance recorded |
3,414
|
4,045
|
| Related allowance |
283
|
380
|
| Recorded investment |
5,216
|
7,407
|
| Unpaid principal balance |
5,800
|
8,895
|
| Residential Portfolio Segment [Member] | Real Estate Loan [Member] |
|
|
| Recorded investment, with no allowance recorded |
386
|
1,042
|
| Unpaid principal balance, with no allowance recorded |
477
|
1,138
|
| Recorded investment, with a related allowance recorded |
1,543
|
1,888
|
| Unpaid principal balance, with a related allowance recorded |
1,543
|
1,888
|
| Related allowance |
29
|
92
|
| Recorded investment |
1,929
|
2,930
|
| Unpaid principal balance |
2,020
|
3,026
|
| Commercial Real Estate Portfolio Segment [Member] | Real Estate Loan [Member] |
|
|
| Recorded investment, with no allowance recorded |
1,066
|
1,850
|
| Unpaid principal balance, with no allowance recorded |
1,143
|
2,868
|
| Recorded investment, with a related allowance recorded |
1,871
|
1,981
|
| Unpaid principal balance, with a related allowance recorded |
1,871
|
1,981
|
| Related allowance |
254
|
287
|
| Recorded investment |
2,937
|
3,831
|
| Unpaid principal balance |
3,014
|
4,849
|
| Construction, Land Acquisition and Development [Member] | Real Estate Loan [Member] |
|
|
| Recorded investment, with no allowance recorded |
350
|
470
|
| Unpaid principal balance, with no allowance recorded |
766
|
844
|
| Recorded investment, with a related allowance recorded |
0
|
176
|
| Unpaid principal balance, with a related allowance recorded |
0
|
176
|
| Related allowance |
0
|
1
|
| Recorded investment |
350
|
646
|
| Unpaid principal balance |
766
|
1,020
|
| Commercial and Industrial [Member] |
|
|
| Recorded investment, with no allowance recorded |
73
|
124
|
| Unpaid principal balance, with no allowance recorded |
105
|
156
|
| Recorded investment, with a related allowance recorded |
18
|
79
|
| Unpaid principal balance, with a related allowance recorded |
18
|
79
|
| Related allowance |
18
|
0
|
| Recorded investment |
91
|
203
|
| Unpaid principal balance |
123
|
235
|
| Consumer Portfolio Segment [Member] |
|
|
| Recorded investment, with no allowance recorded |
0
|
0
|
| Unpaid principal balance, with no allowance recorded |
0
|
0
|
| Recorded investment, with a related allowance recorded |
297
|
351
|
| Unpaid principal balance, with a related allowance recorded |
297
|
351
|
| Related allowance |
1
|
1
|
| Recorded investment |
297
|
351
|
| Unpaid principal balance |
297
|
351
|
| State and Political Subdivisions [Member] |
|
|
| Recorded investment, with no allowance recorded |
0
|
0
|
| Unpaid principal balance, with no allowance recorded |
0
|
0
|
| Recorded investment, with a related allowance recorded |
0
|
0
|
| Unpaid principal balance, with a related allowance recorded |
0
|
0
|
| Related allowance |
0
|
0
|
| Recorded investment |
0
|
0
|
| Unpaid principal balance |
$ 0
|
$ 0
|