Earnings and Dividends per Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Feb. 15, 2014	Dec. 31, 2013	Feb. 15, 2013
Earnings per share, basic and diluted [Abstract]
Net income	$ 2,073,000	$ 1,626,000
Net income allocable to participating securities	(4,000)	(4,000)
Net income after earnings allocated to participating securities	2,069,000	1,622,000
Weighted average shares outstanding	13,596,296	13,556,515
Total dilutive shares outstanding	13,659,827	13,578,429
Earnings per share, basic and diluted (in dollars per share)	$ 0.15	$ 0.12
Dividends per share (in dollars per share)	$ 0.15	$ 0.145
Antidilutive securities excluded from computation of earnings per share (in shares)	0	82,150
Shares outstanding (in shares)	13,622,001		13,612,913	13,568,871	13,586,903
Dividends reinvested	$ 79,000	$ 78,000
Stock repurchased and retired during the period (in shares)	0	52,647
Stock Options (dilutive only) [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	16,691	4,788
Stock subscribed (ESPP) [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	1,196	0
Retention Awards [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	17,452	8,349
Stock Subscribed LTEIP [Member]
Earnings per share, basic and diluted [Abstract]
Incremental common shares attributable to share-based payment arrangements (in shares)	28,192	8,777