v2.4.0.8
Accrued Expenses and Other Current Liabilities (Details) - Accrued expenses and other current liabilities (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Dec. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Accrued expenses and other current liabilities [Abstract]          
Accrued salaries and benefits $ 1,134 $ 1,232      
Warrant liability 1,647 939      
Liability for consigned precious metals 478 832      
Accrued legal settlement and related expenses    616      
Accrued severance and other charges 254 530 530    
Accrued warranty 485 453   539 665
Other 1,688 1,400      
Accrued expenses and other current liabilities $ 5,686 $ 6,002