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Taxes (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Taxes (Textual)      
Unified enterprise income tax rate 25.00%    
Subsidiaries in PRC are subject to income tax rate 25.00%    
Income tax rate 15.00%    
Statutory income tax rate     15.00%
Reduced income tax rate     10.00%
Tax holidays decreased income taxes $ 3,392 $ 174,774 $ 655,889
Net income per share (basic and diluted) $ 0.00 $ 0.03 $ 0.09
Valuation allowance against $ 272,815  
Value add tax exemption amounted $ 185,219 $ 233,345 $ 540,149
Description of net operating loss carryforwards The Company has approximately $1.8 million net operating loss ("NOL") carryforwards with expirations by 2024.    
Maximum [Member]      
Taxes (Textual)      
Value add tax standard rates 13.00%    
Minimum [Member]      
Taxes (Textual)      
Value add tax standard rates 6.00%