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Summary of Significant Accounting Policies - Other (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Variable Interest Entity [Line Items]    
Tax Benefits Recognized (in Percent) 50.00%  
Weighted Average Number of Shares Outstanding, Diluted 3,309,651 2,755,744
Assets $ 13,279,000 $ 11,121,000
Minority Shareholder (Member)    
Variable Interest Entity [Line Items]    
Minority shareholder ownership interest percentage 1.00%  
CHINA    
Variable Interest Entity [Line Items]    
Assets $ 110,000 $ 103,000