Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of accrued expenses and other current liabilities [TableText Block]

	September 30, 2012	December 31, 2011
Accrued salaries and benefits	$ 1,852	$ 1,486
Sales tax payable	227	566
Accrued warranty	596	645
Deferred revenue	─	650
Liability for consigned precious metals	987	652
Other	966	916
Accrued expenses and other current liabilities	$ 4,628	$ 4,915