Annual report pursuant to Section 13 and 15(d)

CONDENSED FINANCIAL STATEMENTS (PARENT COMPANY ONLY), Condensed Statements of Cash Flows (Details)

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CONDENSED FINANCIAL STATEMENTS (PARENT COMPANY ONLY), Condensed Statements of Cash Flows (Details) - 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
Cash flows from operating activities                      
Net income $ 2,194 $ 4,876 $ 4,762 $ 4,460 $ 4,108 $ 4,603 $ 3,745 $ 3,495 $ 16,292 $ 15,951 $ 12,794
Adjustments to reconcile net income to net cash from operating activities:                      
Stock compensation expense                 465 536 478
Net cash from operating activities                 22,779 16,928 14,001
Cash flows from investing activities                      
Net cash from investing activities                 (83,159) (105,340) (95,303)
Cash flows from financing activities                      
Proceeds from issuance of common stock                 68 0 0
Cash dividends paid                 (6,088) (4,049) (3,702)
Repurchases of shares                 (183) (269) (171)
Net cash from financing activities                 132,028 (3,245) 133,323
Net change in cash and cash equivalents                 71,648 (91,657) 52,021
Cash and cash equivalents at beginning of period       89,819       181,476 89,819 181,476 129,455
Cash and cash equivalents at end of period 161,467       89,819       161,467 89,819 181,476
Common Stock [Member]                      
Cash flows from operating activities                      
Net income                 0 0 0
Parent Company [Member]                      
Cash flows from operating activities                      
Net income                 16,292 15,951 12,794
Adjustments to reconcile net income to net cash from operating activities:                      
Equity in undistributed earnings of subsidiaries                 (9,921) (11,128) (8,893)
Stock compensation expense                 55 33 18
Change in other assets                 61 148 2,237
Change in other liabilities                 146 38 (9)
Net cash from operating activities                 6,633 5,042 6,147
Cash flows from investing activities                      
Investment in subsidiaries                 0 0 0
Net cash from investing activities                 0 0 0
Cash flows from financing activities                      
Proceeds from issuance of common stock                 68 0 0
Cash dividends paid                 (6,088) (4,049) (3,702)
Common stock issuance costs                 0 0 0
Repurchases of shares                 (183) (269) (171)
Net cash from financing activities                 (6,203) (4,318) (3,873)
Net change in cash and cash equivalents                 430 724 2,274
Cash and cash equivalents at beginning of period       $ 5,542       $ 4,818 5,542 4,818 2,544
Cash and cash equivalents at end of period $ 5,972       $ 5,542       $ 5,972 $ 5,542 $ 4,818