Earnings and Dividends per Share (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	May 15, 2014	Feb. 15, 2014	Dec. 31, 2013	May 15, 2013	Feb. 15, 2013
Earnings per share, basic and diluted [Abstract]
Net income	$ 1,911,000	$ 2,321,000	$ 3,984,000	$ 3,947,000
Net income allocable to participating securities	(3,000)	(4,000)	(7,000)	(8,000)
Net income after earnings allocated to participating securities	1,908,000	2,317,000	3,977,000	3,939,000
Weighted average shares outstanding	13,641,564	13,531,007	13,619,055	13,543,690
Total dilutive shares outstanding	13,696,119	13,576,967	13,679,378	13,584,749
Earnings per share, basic and diluted (in dollars per share)	$ 0.14	$ 0.17	$ 0.29	$ 0.29
Dividends per share (in dollars per share)	$ 0.15	$ 0.145	$ 0.30	$ 0.29
Antidilutive securities excluded from computation of earnings per share (in shares)	0	77,150	0	82,150
Shares outstanding (in shares)	13,646,449		13,646,449		13,654,438	13,612,913	13,568,871	13,559,043	13,586,903
Dividends reinvested			$ 154,000	$ 154,000
Stock repurchased and retired during the period (in shares)			0	124,285
Stock Options (dilutive only) [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	18,293	5,896	17,228	5,320
Stock subscribed (ESPP) [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	0	0	0	0
Retention Awards [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	19,667	16,775	19,544	13,980
Stock Subscribed LTEIP [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	16,595	23,289	23,551	21,759