Consolidated Statements Of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Deferred Compensation Obligation Under Rabbi Trust [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Stock Held by Rabbi Trust [Member]	Treasury Stock [Member]
Beginning balance at Dec. 31, 2015	$ 53,941	$ 35,927		$ 18,520	$ 86		$ (592)
Beginning balance (in shares) at Dec. 31, 2015		4,646,238
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,574			1,574
Other comprehensive income (loss)	251				251
Treasury shares purchased	0						0
Treasury shares purchased (in shares)		0
Restricted stock granted (in shares)		30,822
Restricted stock forfeited (in shares)		(1,084)
Compensation expense related to stock option and restricted stock grants	101	$ 101
Dividends declared on common stock	(185)			(185)
Ending balance at Mar. 31, 2016	55,682	$ 36,028		19,909	337		(592)
Ending balance (in shares) at Mar. 31, 2016		4,675,976
Beginning balance at Dec. 31, 2016	$ 60,072	$ 36,538	$ 1,383	23,291	243	$ (1,383)	0
Beginning balance (in shares) at Dec. 31, 2016	4,741,068	4,741,068
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 2,011			2,011
Other comprehensive income (loss)	365				365
Treasury shares purchased	0						0
Treasury shares purchased (in shares)		0
Funding of Supplemental Director Retirement Plan	0	$ 0	(111)			111	0
Funding of Supplemental Director Retirement Plan (in shares)		0
Options exercised	0	$ 0					0
Options exercised (in shares)		0
Restricted stock granted (in shares)		47,326
Restricted stock forfeited (in shares)		(3,235)
Compensation expense related to stock option and restricted stock grants	165	$ 165
Dividends declared on common stock	(191)			(191)
Ending balance at Mar. 31, 2017	$ 62,422	$ 36,703	$ 1,272	$ 25,111	$ 608	$ (1,272)	$ 0
Ending balance (in shares) at Mar. 31, 2017	4,785,159	4,785,159