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Bank Loans - Schedule of Secured Short-Term Bank Debt (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Total short-term bank loans $ 6,210,176 $ 6,584,664
Collateralized by office buildings of IST and guaranteed by Mr. Lin and Biznest [Member]    
Total short-term bank loans 3,976,960 4,017,664
Guaranteed by IST and Mr. Lin and Collateralized by the real property of ISIOT and equity investment of ISTIL [Member]    
Total short-term bank loans 2,019,072 1,985,874
Guaranteed by IST and guaranteed by Mr. Lin and guaranteed by DU YONG [Member]    
Total short-term bank loans 258,278
Guaranteed by a $ 0.2 million restricted bank time deposit [Member]    
Total short-term bank loans 214,144
Guaranteed by High-tech Investment Company(i) and Mr. Lin [Member]    
Total short-term bank loans [1] $ 322,848
[1] High-tech Investment Company is an unrelated third party.