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14. Parent Company Financial Statements (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Selling, general and administrative expenses $ 13,191 $ 12,011
Operating loss (12,183) (781)
Other expense    
Interest expense 19,304 17,216
Other income (expense) (277) 334
Loss before income taxes (31,764) (15,630)
Income tax expense (6) (6)
Other comprehensive loss    
Foreign currency translation adjustment 484 (209)
Comprehensive loss (31,286) (15,845)
Parent Company Financial Statements    
Equity in subsidiary losses (22,341) (10,272)
Selling, general and administrative expenses 737 4,818
Operating loss (29,658) (15,090)
Other expense    
Interest expense 503 278
Other income (expense) 134 262
Loss before income taxes (30,295) (15,630)
Income tax expense 6 6
Net loss (30,301) (15,636)
Other comprehensive loss    
Foreign currency translation adjustment 484 (209)
Comprehensive loss $ (29,817) $ (15,845)