Troubled Debt Restructurings (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) Investments	Dec. 31, 2019 USD ($) Investments
Troubled Debt Restructurings (Textual)
Total number of loans classified under troubled debt restructurings (TDRs) | Investments	20	19
Total sum of loans classified as troubled debt restructurings (TDRs) | $	$ 8.4	$ 9.3
Number of months previous loan payment defaulted	12 months	12 months
Financial difficulty (TDR) [Member]
Troubled Debt Restructurings (Textual)
Total number of loans classified under troubled debt restructurings (TDRs)	864
Short-term loan deferral | $	$ 3.2
Remain Under Deferral [Member]
Troubled Debt Restructurings (Textual)
Total number of loans classified under troubled debt restructurings (TDRs)	2
Commercial [Member]
Troubled Debt Restructurings (Textual)
Total number of loans added under troubled debt restructurings (TDRs) | Investments	6