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Summary of Significant Accounting Policies - Other (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Variable Interest Entity [Line Items]
Tax Benefits Recognized (in Percent)	50.00%
Weighted Average Number of Shares Outstanding, Diluted	3,630,994	2,643,470
Assets	$ 13,494,000	$ 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	$ 62,000	$ 103,000

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