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Note 13 - Segment Reporting - Results for Reportable Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Net interest income | $ 7,314 | $ 6,919 |
Provision for loan losses | 658 | 515 |
Total non-interest income | 1,140 | 1,167 |
Total non-interest expense | 7,301 | 7,037 |
Income before income taxes | 495 | 534 |
Provision for income taxes | 81 | 130 |
Net income | 414 | 404 |
Total assets | 627,319 | 619,827 | $ 625,581
Total investment securities | 181,942 | 213,497 |
Total loans, net | 353,805 | 317,677 | 346,121
Investment in subsidiaries | 5 | 5 |
Fixed asset additions | 115 | 4,087 |
Depreciation and amortization expense | 351 | 242 |
Total interest income from external customers | 8,119 | 7,510 |
Total interest income from affiliates |  |  |
Intersegment Eliminations [Member] |  |  |
Net interest income |  |  |
Provision for loan losses |  |  |
Total non-interest income | (836) | (763) |
Total non-interest expense | (201) | (170) |
Income before income taxes | (635) | (593) |
Provision for income taxes |  |  |
Net income | (635) | (593) |
Total assets | (181,340) | (173,601) |
Total investment securities |  |  |
Total loans, net | (85,043) | (76,509) |
Investment in subsidiaries | (75,055) | (76,976) |
Fixed asset additions |  |  |
Depreciation and amortization expense |  |  |
Total interest income from external customers |  |  |
Total interest income from affiliates | (1,093) | (1,117) |
FUSB [Member] |  |  |
Provision for loan losses | 39 |  | (130)
Total loans, net | 259,276 |  | 254,682
FUSB [Member] | Operating Segments [Member] |  |  |
Net interest income | 4,117 | 3,911 |
Provision for loan losses | 39 |  |
Total non-interest income | 867 | 836 |
Total non-interest expense | 4,531 | 4,401 |
Income before income taxes | 414 | 346 |
Provision for income taxes | 70 | 98 |
Net income | 344 | 248 |
Total assets | 629,954 | 622,528 |
Total investment securities | 181,862 | 213,417 |
Total loans, net | 344,319 | 309,425 |
Investment in subsidiaries | 5 | 5 |
Fixed asset additions | 113 | 4,025 |
Depreciation and amortization expense | 318 | 201 |
Total interest income from external customers | 3,837 | 3,392 |
Total interest income from affiliates | 1,089 | 1,114 |
ALC [Member] |  |  |
Provision for loan losses | 619 |  | 2,117
Total loans, net | 94,529 |  | $ 91,439
ALC [Member] | Operating Segments [Member] |  |  |
Net interest income | 3,193 | 3,005 |
Provision for loan losses | 619 | 515 |
Total non-interest income | 256 | 244 |
Total non-interest expense | 2,524 | 2,377 |
Income before income taxes | 306 | 357 |
Provision for income taxes | 70 | 130 |
Net income | 236 | 227 |
Total assets | 97,685 | 88,233 |
Total investment securities |  |  |
Total loans, net | 94,529 | 84,761 |
Investment in subsidiaries |  |  |
Fixed asset additions | 2 | 62 |
Depreciation and amortization expense | 33 | 41 |
Total interest income from external customers | 4,282 | 4,118 |
Total interest income from affiliates |  |  |
Other Segments [Member] | Operating Segments [Member] |  |  |
Net interest income | 4 | 3 |
Provision for loan losses |  |  |
Total non-interest income | 853 | 850 |
Total non-interest expense | 447 | 429 |
Income before income taxes | 410 | 424 |
Provision for income taxes | (59) | (98) |
Net income | 469 | 522 |
Total assets | 81,020 | 82,667 |
Total investment securities | 80 | 80 |
Total loans, net |  |  |
Investment in subsidiaries | 75,055 | 76,976 |
Fixed asset additions |  |  |
Depreciation and amortization expense |  |  |
Total interest income from external customers |  |  |
Total interest income from affiliates | $ 4 | $ 3 |

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