Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $)	6 Months Ended			12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Options outstanding, beginning	191,002
Granted, shares	7,000		89,500
Forfeited, shares
Exercised, shares
Expired, shares	(7,239)
Options outstanding and exercisable, ending	190,763
Options outstanding, beginning, Weighted Average Exercise Price	$ 7.35
Granted, Weighted Average Exercise Price	$ 5.99
Forfeited, Weighted Average Exercise Price
Exercised, Weighted Average Exercise Price
Expired, Weighted Average Exercise Price	$ 14.65
Options outstanding and exercisable, ending, Weighted Average Exercise Price	$ 7.02
Options outstanding and exercisable, ending, Weighted Average Remaining Contractual Life	6 years 8 months 12 days			6 years 9 months 18 days
Options outstanding, ending, Aggregate Intrinsic Value					[1]
Options outstanding and exercisable, ending, Aggregate Intrinsic Value	$ 84,644	[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 June 30, 2014. This amount changes based on changes in the market value of the Company's common stock.