Note 5 - Loans - Summary of Impaired Loans (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
12 Months Ended |
Sep. 30, 2019 |
Sep. 30, 2019 |
Dec. 31, 2018 |
| Recorded investment, with no allowance |
$ 13,088
|
$ 13,088
|
$ 14,423
|
| Unpaid principal balance, with no allowance |
14,789
|
14,789
|
14,610
|
| Average recorded investment, with no allowance |
13,338
|
13,579
|
15,110
|
| Interest income recognized in period, with no allowance |
209
|
717
|
658
|
| Average recorded investment, with no allowance |
13,338
|
13,579
|
15,110
|
| Recorded investment, with an allowance |
38,405
|
38,405
|
24,168
|
| Unpaid principal balance, with an allowance |
49,112
|
49,112
|
31,929
|
| Related allowance |
9,288
|
9,288
|
8,128
|
| Average recorded investment, with an allowance |
45,312
|
46,793
|
27,901
|
| Interest income recognized in period, with an allowance |
40
|
1,066
|
848
|
| Average recorded investment, with an allowance |
45,312
|
46,793
|
27,901
|
| Recorded investment |
51,493
|
51,493
|
38,591
|
| Unpaid principal balance |
63,901
|
63,901
|
46,539
|
| Average recorded investment |
58,650
|
60,372
|
43,011
|
| Interest income recognized in period |
249
|
1,783
|
1,506
|
| Average recorded investment |
58,650
|
60,372
|
43,011
|
| Commercial Real Estate Portfolio Segment [Member] |
|
|
|
| Recorded investment, with no allowance |
2,705
|
2,705
|
6,064
|
| Unpaid principal balance, with no allowance |
4,308
|
4,308
|
6,064
|
| Average recorded investment, with no allowance |
3,186
|
3,799
|
6,142
|
| Interest income recognized in period, with no allowance |
50
|
129
|
237
|
| Average recorded investment, with no allowance |
3,186
|
3,799
|
6,142
|
| Recorded investment, with an allowance |
19,150
|
19,150
|
12,380
|
| Unpaid principal balance, with an allowance |
26,551
|
26,551
|
20,141
|
| Related allowance |
7,165
|
7,165
|
6,066
|
| Average recorded investment, with an allowance |
21,260
|
22,568
|
15,918
|
| Interest income recognized in period, with an allowance |
15
|
467
|
462
|
| Average recorded investment, with an allowance |
21,260
|
22,568
|
15,918
|
| Recorded investment |
21,855
|
21,855
|
18,444
|
| Unpaid principal balance |
30,859
|
30,859
|
26,205
|
| Average recorded investment |
24,446
|
26,367
|
22,060
|
| Interest income recognized in period |
65
|
596
|
699
|
| Average recorded investment |
24,446
|
26,367
|
22,060
|
| Real Estate Portfolio Segment[Member] |
|
|
|
| Recorded investment, with no allowance |
7,639
|
7,639
|
7,895
|
| Unpaid principal balance, with no allowance |
7,734
|
7,734
|
8,079
|
| Average recorded investment, with no allowance |
7,729
|
7,946
|
8,444
|
| Interest income recognized in period, with no allowance |
120
|
508
|
393
|
| Average recorded investment, with no allowance |
7,729
|
7,946
|
8,444
|
| Recorded investment, with an allowance |
17,667
|
17,667
|
10,742
|
| Unpaid principal balance, with an allowance |
20,973
|
20,973
|
10,742
|
| Related allowance |
2,013
|
2,013
|
1,887
|
| Average recorded investment, with an allowance |
22,464
|
22,602
|
10,937
|
| Interest income recognized in period, with an allowance |
39
|
572
|
352
|
| Average recorded investment, with an allowance |
22,464
|
22,602
|
10,937
|
| Recorded investment |
25,306
|
25,306
|
18,637
|
| Unpaid principal balance |
28,707
|
28,707
|
18,821
|
| Average recorded investment |
30,193
|
30,548
|
19,381
|
| Interest income recognized in period |
159
|
1,080
|
745
|
| Average recorded investment |
30,193
|
30,548
|
19,381
|
| Real Estate Portfolio Segment[Member] | Construction Loans [Member] |
|
|
|
| Recorded investment, with no allowance |
2,744
|
2,744
|
464
|
| Unpaid principal balance, with no allowance |
2,747
|
2,747
|
467
|
| Average recorded investment, with no allowance |
2,423
|
1,834
|
524
|
| Interest income recognized in period, with no allowance |
39
|
80
|
28
|
| Average recorded investment, with no allowance |
2,423
|
1,834
|
524
|
| Recorded investment, with an allowance |
1,588
|
1,588
|
997
|
| Unpaid principal balance, with an allowance |
1,588
|
1,588
|
997
|
| Related allowance |
110
|
110
|
126
|
| Average recorded investment, with an allowance |
1,588
|
1,623
|
997
|
| Interest income recognized in period, with an allowance |
|
27
|
31
|
| Interest income recognized in period, with an allowance |
(14)
|
|
|
| Average recorded investment, with an allowance |
1,588
|
1,623
|
997
|
| Recorded investment |
4,332
|
4,332
|
1,461
|
| Unpaid principal balance |
4,335
|
4,335
|
1,464
|
| Average recorded investment |
4,011
|
3,457
|
1,521
|
| Interest income recognized in period |
25
|
107
|
59
|
| Average recorded investment |
4,011
|
3,457
|
1,521
|
| Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member] |
|
|
|
| Recorded investment, with no allowance |
7,341
|
7,341
|
1,763
|
| Unpaid principal balance, with no allowance |
7,436
|
7,436
|
1,947
|
| Average recorded investment, with no allowance |
7,414
|
7,625
|
2,223
|
| Interest income recognized in period, with no allowance |
120
|
506
|
120
|
| Average recorded investment, with no allowance |
7,414
|
7,625
|
2,223
|
| Recorded investment, with an allowance |
14,867
|
14,867
|
3,358
|
| Unpaid principal balance, with an allowance |
18,173
|
18,173
|
3,358
|
| Related allowance |
1,159
|
1,159
|
99
|
| Average recorded investment, with an allowance |
19,664
|
19,850
|
3,364
|
| Interest income recognized in period, with an allowance |
61
|
548
|
105
|
| Average recorded investment, with an allowance |
19,664
|
19,850
|
3,364
|
| Recorded investment |
22,208
|
22,208
|
5,121
|
| Unpaid principal balance |
25,609
|
25,609
|
5,305
|
| Average recorded investment |
27,078
|
27,475
|
5,587
|
| Interest income recognized in period |
181
|
1,054
|
225
|
| Average recorded investment |
27,078
|
27,475
|
5,587
|
| Real Estate Portfolio Segment[Member] | One to Four Family [Member] |
|
|
|
| Recorded investment, with no allowance |
298
|
298
|
1,071
|
| Unpaid principal balance, with no allowance |
298
|
298
|
1,071
|
| Average recorded investment, with no allowance |
315
|
321
|
1,088
|
| Interest income recognized in period, with no allowance |
0
|
2
|
21
|
| Average recorded investment, with no allowance |
315
|
321
|
1,088
|
| Recorded investment, with an allowance |
1,293
|
1,293
|
975
|
| Unpaid principal balance, with an allowance |
1,293
|
1,293
|
975
|
| Related allowance |
204
|
204
|
208
|
| Average recorded investment, with an allowance |
1,293
|
1,296
|
975
|
| Interest income recognized in period, with an allowance |
|
|
30
|
| Interest income recognized in period, with an allowance |
1
|
3
|
|
| Average recorded investment, with an allowance |
1,293
|
1,296
|
975
|
| Recorded investment |
1,591
|
1,591
|
2,046
|
| Unpaid principal balance |
1,591
|
1,591
|
2,046
|
| Average recorded investment |
1,608
|
1,617
|
2,063
|
| Interest income recognized in period |
|
5
|
51
|
| Interest income recognized in period |
1
|
|
|
| Average recorded investment |
1,608
|
1,617
|
2,063
|
| Real Estate Portfolio Segment[Member] | Other Mortgages [Member] |
|
|
|
| Recorded investment, with no allowance |
0
|
0
|
5,061
|
| Unpaid principal balance, with no allowance |
0
|
0
|
5,061
|
| Average recorded investment, with no allowance |
0
|
0
|
5,133
|
| Interest income recognized in period, with no allowance |
0
|
0
|
252
|
| Average recorded investment, with no allowance |
0
|
0
|
5,133
|
| Recorded investment, with an allowance |
1,507
|
1,507
|
6,409
|
| Unpaid principal balance, with an allowance |
1,507
|
1,507
|
6,409
|
| Related allowance |
650
|
650
|
1,580
|
| Average recorded investment, with an allowance |
1,507
|
1,456
|
6,598
|
| Interest income recognized in period, with an allowance |
|
21
|
217
|
| Interest income recognized in period, with an allowance |
(23)
|
|
|
| Average recorded investment, with an allowance |
1,507
|
1,456
|
6,598
|
| Recorded investment |
1,507
|
1,507
|
11,470
|
| Unpaid principal balance |
1,507
|
1,507
|
11,470
|
| Average recorded investment |
1,507
|
1,456
|
11,731
|
| Interest income recognized in period |
|
21
|
469
|
| Average recorded investment |
1,507
|
1,456
|
11,731
|
| Consumer Portfolio Segment [Member] |
|
|
|
| Recorded investment, with no allowance |
0
|
0
|
0
|
| Unpaid principal balance, with no allowance |
0
|
0
|
0
|
| Average recorded investment, with no allowance |
0
|
0
|
0
|
| Interest income recognized in period, with no allowance |
0
|
0
|
0
|
| Average recorded investment, with no allowance |
0
|
0
|
0
|
| Recorded investment, with an allowance |
0
|
0
|
49
|
| Unpaid principal balance, with an allowance |
0
|
0
|
49
|
| Related allowance |
0
|
0
|
49
|
| Average recorded investment, with an allowance |
0
|
0
|
49
|
| Interest income recognized in period, with an allowance |
0
|
0
|
3
|
| Average recorded investment, with an allowance |
0
|
0
|
49
|
| Recorded investment |
0
|
0
|
49
|
| Unpaid principal balance |
0
|
0
|
49
|
| Average recorded investment |
0
|
0
|
49
|
| Interest income recognized in period |
0
|
0
|
3
|
| Average recorded investment |
$ 0
|
$ 0
|
$ 49
|