Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details 1)

v3.20.2
Segment Information (Details 1) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Identifiable long-lived tangible assets $ 8,174,974 $ 8,337,105
United States [Member]    
Identifiable long-lived tangible assets 7,746,413 7,839,093
China [Member]    
Identifiable long-lived tangible assets $ 428,561 $ 498,012