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Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Statement of Comprehensive Income [Abstract]      
Net income $ 6,370 $ 6,897 $ 7,140
Other comprehensive (loss) income:      
Changes in benefit obligations and plan assets for post retirement benefit plans, net of deferred income tax of $0, $0 and ($3) for the years ended December 31, 2016, 2015, and 2014, respectively 0 0 (5)
Unrealized (loss) gain on available for sale securities, net of reclassification adjustments, net of deferred income tax of ($554), ($234), and $473 for the years ended December 31, 2016, 2015, and 2014, respectively (1,075) (454) 919
Change in fair value of interest rate swap, net of deferred income tax of $0, $99, and $49 for the years ended December 31, 2016, 2015 and 2014, respectively 0 190 96
Total other comprehensive (loss) income (1,075) (264) 1,010
Total comprehensive income $ 5,295 $ 6,633 $ 8,150