Prepaid Expenses and Other - Prepaid Expenses and Other (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other receivables	$ 830	$ 864
Tax receivables	158	429
Deposits	60	64
Prepaid insurance	214	551
Prepaid rent	192	297
Prepaid repairs and maintenance	688	698
Prepaid taxes	94	508
Prepaid commissions	3,062	1,510
Prepaid inventory	412	278
Prepaid expenses	417	605
Prepaid royalty	29	32
Total prepaid expenses and other	$ 6,156	$ 5,836