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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Schedule of assets and liabilities recorded at fair value
       Fair Value Measurements at 
       Reporting Date Using 
Description  December 31,
2018
   Level 1   Level 2   Level 3 
Banker's acceptance notes  $20,579   $-   $20,579   $- 
Total  $20,579   $-   $20,579   $-