Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions Related Party Transactions (Details)

v3.4.0.3
Related Party Transactions Related Party Transactions (Details)
3 Months Ended
Mar. 31, 2016
USD ($)
Mar. 31, 2015
USD ($)
Mar. 31, 2016
CNY (¥)
Mar. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Related Party Transaction [Line Items]          
Note payable to related party noncurrent   $ 15,743,000   $ 15,123,000 $ 15,030,000
Related party interest expense on note payable $ 264,000 274,000      
Swire Resources [Member]          
Related Party Transaction [Line Items]          
Note payable to related party noncurrent       $ 15,123,000  
Related party note payable maturity date Dec. 31, 2018        
Related party note payable interest rate     7.00% 7.00%  
Related party interest expense on note payable $ 264,000 274,000      
Accounts payable to related party current   5,338,000   $ 1,870,000 $ 1,472,000
Related party sourcing fees 51,000 289,000      
Related party service fees, interest expense and miscellaneous expenses $ 853,000 $ 1,754,000      
China, Yuan Renminbi | Swire Resources [Member]          
Related Party Transaction [Line Items]          
Note payable to related party noncurrent | ¥     ¥ 97,600,000