XML 101 R85.htm IDEA: XBRL DOCUMENT v3.6.0.2
Income Tax Provision - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Examination [Line Items]        
Income taxes paid $ 0 $ 500,000    
Undistributed earnings of foreign subsidiaries 1,600,000 1,600,000 $ 1,500,000  
Deferred tax liability for current year earnings of Chinese subsidiary where earnings are not permanently reinvested by the company 100,000      
Net deferred tax assets 300,000      
Operating loss carryforwards 306,500,000      
Operating loss carryforwards, valuation allowance 24,400,000      
Valuation allowances 24,400,000 10,200,000    
Unrecognized tax benefits 0 0 $ 0 $ 700,000
Unrecognized tax benefits that would impact tax rate 0 0    
Interest and penalties related to unrecognized tax benefits 0 0    
State        
Income Tax Examination [Line Items]        
Income tax refundable overpayments 500,000 1,700,000    
Federal        
Income Tax Examination [Line Items]        
Income tax refundable overpayments 0 $ 6,900,000    
Valuation allowances $ 15,600,000