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Parent Company Financial Information (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Expenses |  |  |  |  |  |  |  |  |  |  |
Interest expense | $ 1,108 | $ 1,075 | $ 1,003 | $ 908 | $ 865 | $ 828 | $ 790 | $ 715 | $ 4,094 | $ 3,198 | $ 2,584
Income tax benefit | (592) | 1,117 | 1,102 | 933 | 1,099 | 1,209 | 1,058 | 751 | 2,560 | 4,117 | 3,404
Equity in undistributed income of subsidiaries |  |  |  |  |  |  |  |  |  |  |
Net income | 4,032 | 2,723 | 2,317 | 1,993 | 2,317 | 2,547 | 2,265 | 1,655 | 11,065 | 8,784 | 7,619
Preferred stock dividends | 244 | 244 | 244 | 244 | 244 | 244 | 244 | 244 | 975 | 975 | 956
Net income available to common shareholders | $ 3,788 | $ 2,479 | $ 2,073 | $ 1,749 | $ 2,073 | $ 2,303 | $ 2,021 | $ 1,411 | 10,090 | 7,809 | 6,663
Comprehensive income |  |  |  |  |  |  |  |  | 10,896 | 8,185 | 7,351
Parent [Member] |  |  |  |  |  |  |  |  |  |  |
Dividends from subsidiaries: |  |  |  |  |  |  |  |  |  |  |
Banking subsidiaries |  |  |  |  |  |  |  |  | 2,000 |  | 1,000
Nonbanking subsidiaries |  |  |  |  |  |  |  |  | 40 |  |
Total income |  |  |  |  |  |  |  |  | 2,040 |  | 1,000
Expenses |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | 304 | 253 | 212
Other expense |  |  |  |  |  |  |  |  | 1,352 | 969 | 922
Total expenses |  |  |  |  |  |  |  |  | 1,656 | 1,222 | 1,134
Income before income tax |  |  |  |  |  |  |  |  | 384 | (1,222) | (134)
Income tax benefit |  |  |  |  |  |  |  |  | (543) | (416) | (385)
Income before equity in undistributed income of subsidiaries |  |  |  |  |  |  |  |  | 927 | (806) | 251
Equity in undistributed income of subsidiaries |  |  |  |  |  |  |  |  |  |  |
Banking subsidiaries |  |  |  |  |  |  |  |  | 10,337 | 9,662 | 7,369
Nonbanking subsidiaries |  |  |  |  |  |  |  |  | (199) | (72) | (1)
Total |  |  |  |  |  |  |  |  | 10,138 | 9,590 | 7,368
Net income |  |  |  |  |  |  |  |  | 11,065 | 8,784 | 7,619
Preferred stock dividends |  |  |  |  |  |  |  |  | 975 | 975 | 956
Net income available to common shareholders |  |  |  |  |  |  |  |  | 10,090 | 7,809 | 6,663
Comprehensive income |  |  |  |  |  |  |  |  | $ 10,896 | $ 8,185 | $ 7,351

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