Stock-Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Restricted Stock Awards	Dec. 31, 2013 2013 Equity Incentive Plan	Mar. 03, 2014 Subsequent Event Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares of common stock permitted to be granted			700,000
Equity Incentive Plan, term			10 years
Shares of common stock reserved for issuance			540,337
Restricted stock granted		169,227		99,289
Restricted stock award, vesting period		2 years
Restricted stock award, percentage vested on grant date		33.33%
Stock-based compensation expense	$ 1,249,000
Unrecognized compensation cost		$ 700,000
Unrecognized compensation cost, recognition period		17 months
Shares tendered by employees to satisfy minimum statutory tax withholding obligations		8,687
Restricted stock granted, grant date fair value		$ 11.50		$ 9.94