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Condensed Parent Only Financial Information Condensed Statements of Cash Flows (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Net Cash Provided by (Used in) Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income | $ 4,064,000 | $ 5,301,000 | $ 3,289,000 | $ 3,649,000 | $ 4,037,000 | $ 2,584,000 | $ 1,886,000 | $ 3,397,000 | $ 16,303,000 | $ 11,905,000 | $ 14,909,000
Equity in undistributed earnings of consolidated subsidiaries |  |  |  |  |  |  |  |  | (459,000) | (354,000) |
Share-based compensation |  |  |  |  |  |  |  |  | 1,004,000 | 1,078,000 | 994,000
Excess tax benefit from share-based compensation |  |  |  |  |  |  |  |  | (46,000) | (66,000) | (142,000)
Net increase (decrease) in other liabilities |  |  |  |  |  |  |  |  | 7,672,000 | 1,907,000 | 1,367,000
Other, net |  |  |  |  |  |  |  |  | (4,428,000) | (2,857,000) | (3,861,000)
Net cash provided by operating activities |  |  |  |  |  |  |  |  | 25,694,000 | 22,408,000 | 26,162,000
Net Cash Provided by (Used in) Investing Activities |  |  |  |  |  |  |  |  |  |  |
Net cash used in investing activities |  |  |  |  |  |  |  |  | (138,266,000) | (46,353,000) | (44,308,000)
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  |  |  |
Net (decrease) increase in short-term borrowed funds |  |  |  |  |  |  |  |  | 0 | (1,000,000) | (1,500,000)
Proceeds from issuance of subordinated notes payable |  |  |  |  |  |  |  |  | 0 | 9,090,000 | 0
Repayment of subordinated notes payable |  |  |  |  |  |  |  |  | 0 | (7,875,000) | 0
Purchase of treasury stock |  |  |  |  |  |  |  |  | (533,000) | (323,000) | (467,000)
Cash dividends paid |  |  |  |  |  |  |  |  | (4,916,000) | (4,538,000) | (4,176,000)
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | 146,579,000 | (1,033,000) | (17,901,000)
Net (decrease) increase in cash and cash equivalents |  |  |  |  |  |  |  |  | 34,007,000 | (24,978,000) | (36,047,000)
Cash and cash equivalents at the beginning of the period |  |  |  | 52,539,000 |  |  |  | 77,517,000 | 52,539,000 | 77,517,000 | 113,564,000
Cash and cash equivalents at the end of the period | 86,546,000 |  |  |  | 52,539,000 |  |  |  | 86,546,000 | 52,539,000 | 77,517,000
Parent company |  |  |  |  |  |  |  |  |  |  |
Net Cash Provided by (Used in) Operating Activities |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | 16,303,000 | 11,905,000 | 14,909,000
Equity in undistributed earnings of consolidated subsidiaries |  |  |  |  |  |  |  |  | (20,094,000) | (15,086,000) | (18,719,000)
Share-based compensation |  |  |  |  |  |  |  |  | 1,004,000 | 1,078,000 | 994,000
Excess tax benefit from share-based compensation |  |  |  |  |  |  |  |  | (24,000) | (37,000) | (83,000)
Net increase (decrease) in other liabilities |  |  |  |  |  |  |  |  | 321,000 | (4,170,000) | 1,198,000
Other, net |  |  |  |  |  |  |  |  | 72,000 | (2,233,000) | (3,162,000)
Net cash provided by operating activities |  |  |  |  |  |  |  |  | (2,418,000) | (8,543,000) | (4,863,000)
Net Cash Provided by (Used in) Investing Activities |  |  |  |  |  |  |  |  |  |  |
Dividends received from subsidiaries |  |  |  |  |  |  |  |  | 10,034,000 | 14,534,000 | 13,534,000
Capital contributions to subsidiaries |  |  |  |  |  |  |  |  | 0 | 0 | (3,500,000)
Net cash used in investing activities |  |  |  |  |  |  |  |  | 10,034,000 | 14,534,000 | 10,034,000
Net Cash Provided by (Used in) Financing Activities |  |  |  |  |  |  |  |  |  |  |
Net (decrease) increase in short-term borrowed funds |  |  |  |  |  |  |  |  | 60,000 | (1,000,000) | (1,500,000)
Proceeds from issuance of subordinated notes payable |  |  |  |  |  |  |  |  | 0 | 9,090,000 | 0
Repayment of subordinated notes payable |  |  |  |  |  |  |  |  | 0 | (7,875,000) | 0
Purchase of treasury stock |  |  |  |  |  |  |  |  | (533,000) | (323,000) | (467,000)
Cash dividends paid |  |  |  |  |  |  |  |  | (4,916,000) | (4,538,000) | (4,176,000)
Net cash (used in) provided by financing activities |  |  |  |  |  |  |  |  | (5,389,000) | (4,646,000) | (6,143,000)
Net (decrease) increase in cash and cash equivalents |  |  |  |  |  |  |  |  | 2,227,000 | 1,345,000 | (972,000)
Cash and cash equivalents at the beginning of the period |  |  |  | $ 1,472,000 |  |  |  | $ 127,000 | 1,472,000 | 127,000 | 1,099,000
Cash and cash equivalents at the end of the period | $ 3,699,000 |  |  |  | $ 1,472,000 |  |  |  | $ 3,699,000 | $ 1,472,000 | $ 127,000

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