Earnings (Loss) Per Common Share - Basic and Diluted Earning Per Share (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Earning Per Share Additional Information [Abstract]
Weighted average shares outstanding used in Basic Earnings per Common Share									9,050,901	7,939,433	7,880,249
Dilutive effect of stock options									19,989	4,485	0
Weighted average shares outstanding used in Diluted Earnings Per Common Share									9,070,890	7,943,918	7,880,249
Net income	$ 1,706	$ 1,519	$ 1,823	$ 1,113	$ 1,639	$ 1,525	$ 1,438	$ 1,505	$ 6,161	$ 6,107	$ 5,003
Preferred stock dividend and accretion									646	1,266	1,276
Income Available to Common Shareholders									$ 5,515	$ 4,841	$ 3,727
Basic Earnings Per Common Share	$ 0.18	$ 0.15	$ 0.18	$ 0.10	$ 0.17	$ 0.15	$ 0.14	$ 0.15	$ 0.61	$ 0.61	$ 0.47
Diluted Earnings Per Common Share	$ 0.18	$ 0.15	$ 0.18	$ 0.10	$ 0.17	$ 0.15	$ 0.14	$ 0.15	$ 0.61	$ 0.61	$ 0.47