Stock-Based Compensation Plans - Summary of Stock Option Plan Activity (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Options outstanding, beginning	120,617		197,423
Granted, shares	89,500
Forfeited, shares	(11,519)		(59,584)
Exercised, shares
Expired, shares	(7,596)		(17,222)
Options outstanding, ending	191,002		120,617		197,423
Options outstanding, beginning, Weighted Average Exercise Price	$ 9.51		$ 10.00
Options exercisable, ending	191,002
Granted, Weighted Average Exercise Price	$ 5.25
Forfeited, Weighted Average Exercise Price	$ 9.42		$ 9.45
Exercised, Weighted Average Exercise Price
Expired, Weighted Average Exercise Price	$ 13.80		$ 15.34
Options outstanding, ending, Weighted Average Exercise Price	$ 7.35		$ 9.51		$ 10.00
Options exercisable, ending, Weighted Average Exercise Price	$ 7.35
Options outstanding, ending, Weighted Average Remaining Contractual Life	6 years 9 months 18 days		5 years 4 months 24 days		5 years 9 months 18 days
Options exercisable, ending, Weighted Average Remaining Contractual Life	6 years 9 months 18 days
Options outstanding, ending, Aggregate Intrinsic Value	$ 14,146	[1]	$ 6,750	[1]
Options exercisable, ending, Aggregate Intrinsic Value	$ 14,146	[1]

[1] The aggregate intrinsic value of a stock option in the table above represents the total pre-tax intrinsic value (the amount by which the current market value of the underlying stock exceeds the exercise price of the option) that would have been received by the option holders had all option holders exercised their options on December 31, 2013. This amount changes based on changes in the market value of the Company's common stock.