Summary of Bank Borrowings and Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Debt Disclosure [Abstract]
Bank borrowings	$ 9,834	[1]	$ 6,582	[1]
Capital lease obligations for equipment bearing interest rates ranging from 5.3% to 73.3% and maturities through 2016	96		53
Total bank borrowings and capital lease obligations	$ 9,930		$ 6,635

[1] Bank borrowings represent the outstanding debt balance related to three separate notes payable issued by PNC Equipment Finance, LLC (“PNC”) related to our ERP implementation. The first note payable was issued on December 10, 2012 for software licenses and support with a face value of $6.6 million due September 2016 with fixed quarterly payments of $0.4 million, including stated interest at 2.63%. The second note payable was issued on March 25, 2013 for software maintenance and consulting services with a face value of $3.1 million due September 2016 with fixed quarterly payments of $0.2 million, including stated interest at 2.45%. The third note payable was issued on June 25, 2013 for software maintenance and consulting services with a face value of $2.4 million due March 2017 with fixed quarterly payments of $0.2 million, including stated interest at 2.79%.