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Note 7 - Due From Related Parties, Net (Details Textual)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Apr. 07, 2019
USD ($)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
USD ($)
Dec. 31, 2017
CNY (¥)
Due from Related Parties, Current, Total $ 226       $ 14  
Allowance for Doubtful Accounts Receivable, Related Party, Current 175       373  
Related-party Working Capital Loans [Member] | Chuangshi Meiwei and Guoshua Shiji [Member]            
Due from Related Parties, Current, Total 200     ¥ 1,380    
Proceeds from Collection of Short-term Loans to Related Parties 30 ¥ 180        
Allowance for Doubtful Accounts, Related Party, Reversal 40          
Allowance for Doubtful Accounts Receivable, Related Party, Current         210  
Related-party Working Capital Loans [Member] | Chuangshi Meiwei [Member]            
Due from Related Parties, Current, Total         150 ¥ 1,000
Related-party Working Capital Loans [Member] | Guohua Shiji [Member]            
Due from Related Parties, Current, Total         $ 180 ¥ 1,200
Fund Advanced to Company Management [Member] | Officer [Member]            
Due from Related Parties, Total $ 200          
Fund Advanced to Company Management [Member] | Officer [Member] | Subsequent Event [Member]            
Due from Related Parties, Amount Returned     $ 200