Employee Benefit Plans - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Total employee contributions	$ 49	$ 37
Vesting period	6 years
Maximum [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Gross employee contribution	100.00%
Each participant's gross salary	5.00%
Minimum [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Gross employee contribution	50.00%
Each participant's gross salary	3.00%