Quarterly Financial Comparison (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2013
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Interest and dividend income   $ 11,208 $ 11,002 $ 10,935 $ 10,728 $ 10,663 $ 10,667 $ 10,254 $ 10,175 $ 10,112 $ 9,975 $ 9,750 $ 9,841 $ 43,873 $ 41,759 $ 39,678
Interest expense   1,860 1,918 1,902 1,665 1,610 1,663 1,684 1,741 1,732 1,873 2,018 2,023 7,345 6,698 7,646
Net interest income   9,348 9,084 9,033 9,063 9,053 9,004 8,570 8,434 8,380 8,102 7,732 7,818 36,528 35,061 32,032
Provision for loan loss   362 501 392 178 1,502 385 563 203 300 286 200 154      
Net interest income after provision for loan losses   8,986 8,583 8,641 8,885 7,551 8,619 8,007 8,231 8,080 7,816 7,532 7,664 35,095 32,408 31,092
Noninterest income   909 466 962 962 1,225 1,118 855 895 797 1,119 1,069 1,189 3,299 4,093 4,174
Noninterest expense   7,556 7,031 6,888 6,943 6,652 6,485 6,767 6,331 6,348 6,245 6,107 6,144 28,418 26,235 24,844
Income before income taxes   2,339 2,018 2,715 2,904 2,124 3,252 2,095 2,795 2,529 2,690 2,494 2,709 9,976 10,266 10,422
Provision for income taxes   811 735 1,004 1,083 579 1,363 760 1,074 885 987 909 990 3,633 3,776 3,771
Net Income   $ 1,528 $ 1,283 $ 1,711 1,821 1,545 1,889 1,335 1,721 1,644 1,703 1,585 1,719      
Preferred stock dividends   23 50 50 50 50 50 50 50 50 23 200 200
Net income available to common shareholders   $ 1,528 $ 1,283 $ 1,711 $ 1,798 $ 1,495 $ 1,839 $ 1,285 $ 1,671 $ 1,594 $ 1,653 $ 1,535 $ 1,669 $ 6,320 $ 6,290 $ 6,451
Earnings Per Common Share                                
Basic   $ 0.33 [1] $ 0.28 [1] $ 0.37 [1] $ 0.38 [1] $ 0.32 [1] $ 0.40 [1] $ 0.28 [1] $ 0.36 [1] $ 0.35 [1] $ 0.55 [1] $ 0.51 [1] $ 0.55 [1] $ 1.36 $ 1.35 $ 1.90
Diluted   0.33 [1] $ 0.27 [1] $ 0.37 [1] $ 0.38 [1] 0.32 [1] $ 0.39 [1] $ 0.28 [1] $ 0.36 [1] $ 0.35 [1] $ 0.55 [1] $ 0.51 [1] $ 0.54 [1] 1.35 1.35 $ 1.88
Stock offering shares issued 1,591,300                              
Proceeds from public offering $ 27,400                             $ 27,387
Sale of stock, price per share (in dollars per share) $ 18.75 $ 20.96       $ 20.07               $ 20.96 $ 20.07  
Parent Company [Member]                                
Interest expense                           $ 1,599 $ 312 305
Net interest income                           1,227 3,194 (259)
Income before income taxes                           (194) 1,767 (1,084)
Net income available to common shareholders                           $ 6,320 $ 6,290 6,451
Earnings Per Common Share                                
Proceeds from public offering                               $ 27,387
[1] Earnings per share are based upon quarterly results and, when added, may not total the annual earnings per share amounts. In October 2013, the Company issued 1,591,300 shares of common stock at a price of $18.75 per share resulting in net proceeds of $27.4 million after commissions and related offering expenses. The additional shares outstanding impacted year to year comparability of per share earnings beginning with fourth quarter 2013 results