Related-Party Transactions - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Related Party Transaction [Line Items]
Accounts payable to affiliates	$ 1,040,000		$ 1,012,000
Franchise revenue		803,000
Amounts allocated for services rendered and rent for office space	562,000	769,000
Advertising Fund
Related Party Transaction [Line Items]
Related party transactions expenses	283,000	283,000
Tails Inc
Related Party Transaction [Line Items]
Related party transactions expenses		71,000
Accounts payable to affiliates	$ 988,000		$ 945,000