Summary of Bank Borrowings and Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]
Long-term debt	$ 6,582
Bank borrowings	6,582
Revolving credit facility		422
Capital lease obligations for capitalized software bearing interest rates ranging from 8.7% to 12.4% and maturities through 2012		640
Capital lease obligations for equipment bearing interest rates of 5.3% and maturities through 2017	53	81
Total bank borrowings and capital lease obligations	$ 6,635	$ 1,143