Prepaids, Deposits and Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	$ 2,391	$ 1,797
Prepaid taxes [Member]
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	952	927
Prepaid leases [Member]
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	219	222
Prepayment to suppliers [Member]
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	769	279
Deposits on EGM orders [Member]
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	56	16
Rental, utilities and other deposits [Member]
Prepaids, Deposits and Other Assets [Line Items]
Prepaids, deposits and other assets	$ 395	$ 353