Accrued Expenses and Other Current Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accrued Expenses And Other Current Liabilities [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities [Table Text Block]

	December 31,
	2013	2012
Accrued salaries and benefits	$ 1,232	$ 1,347
Warrant liability	939	10
Liability for consigned precious metals	832	694
Accrued legal settlement and related expenses	616	─
Accrued severance and other charges	530	490
Accrued warranty	453	665
Sales tax payable	206	216
Other	1,194	1,092
Accrued expenses and other current liabilities	$ 6,002	$ 4,514