Summary of Significant Accounting Policies, Concentration of Credit Risk (Details) - Deposits [Member] - Customer Concentration Risk [Member] - Two Long-term Customers [Member]	12 Months Ended
Dec. 31, 2020 Customer
Concentration of Credit Risk [Abstract]
Number of customers with significant concentration risk	2
Percentage of concentration risk	13.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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-Name Accounting Standards Codification
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