Summary of Bank Borrowings and Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012
Debt Disclosure [Abstract]
Bank borrowings	$ 13,529	[1]	$ 6,582	[1]
Capital lease obligations for equipment bearing interest rates ranging from 5.3% to 73.3% and maturities through 2016	78		53
Total bank borrowings and capital lease obligations	$ 13,607		$ 6,635

[1] Bank borrowings represent the outstanding debt balance related to four separate notes payable issued by PNC Equipment Finance, LLC (“PNC”) for our new ERP implementation. The notes bear interest rates ranging from 2.45% to 2.79% and maturities ranging from September 2016 to June 2017. Interest rates and payment terms are subject to change as further financing occurs.