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Common Stock and Additional Paid-In Capital
3 Months Ended
Mar. 31, 2019
Equity [Abstract]  
Common Stock and Additional Paid-In Capital

4. Common Stock and Additional Paid-In Capital
   
  Common Stock: Authorized: 100,000,000 shares, $0.00001 par value; 6,534,492 shares issued and outstanding
   
  There were no common stock activities for the three months ended March 31, 2019 and 2018.