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Summary of Significant Accounting Policies - Other (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Variable Interest Entity [Line Items]    
Tax Benefits Recognized Description The tax benefits recognized in the consolidated financial statements from such a position are measured based on the largest benefit that has a greater than 50 percent likelihood of being realized upon ultimate resolution.  
Funds Received $ 40,000 $ 108,000
Additional Funds Received $ 50,000  
Weighted Average Number of Shares Outstanding, Diluted 2,777,119 2,211,058
Assets $ 11,121,000 $ 10,942,000
CHINA    
Variable Interest Entity [Line Items]    
Assets $ 103,000 $ 151,000