Benefit Plans - Schedule of Fair Values of Pension Plan Assets (Details) - USD ($)	Dec. 31, 2020		Dec. 31, 2019
Fair value of plan assets	$ 2,197,159		$ 2,207,451
Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	1,726,595		1,675,668
Fair Value Inputs Level 2 [Member]
Fair value of plan assets	470,564		531,783
Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets
Cash and Money Market Funds [Member]
Fair value of plan assets	807,635		461,012
Cash and Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	807,635		461,012
Cash and Money Market Funds [Member] | Fair Value Inputs Level 2 [Member]
Fair value of plan assets
Cash and Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets
Corporate Bonds [Member]
Fair value of plan assets	470,564	[1]	531,783	[2]
Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets		[1]		[2]
Corporate Bonds [Member] | Fair Value Inputs Level 2 [Member]
Fair value of plan assets	470,564	[1]	531,783	[2]
Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets		[1]		[2]
Equity Securities [Member]
Fair value of plan assets	918,960	[3]	816,679	[4]
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets	918,960	[3]	816,679	[4]
Equity Securities [Member] | Fair Value Inputs Level 2 [Member]
Fair value of plan assets		[3]		[4]
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets		[3]		[4]
US Treasuries [Member]
Fair value of plan assets			397,977
US Treasuries [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of plan assets			397,977
US Treasuries [Member] | Fair Value Inputs Level 2 [Member]
Fair value of plan assets
US Treasuries [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of plan assets

[1] Includes seven corporate bonds due within five years rated BBB+ or better by the S&P.

[2] Includes eight corporate bonds due within ten years rated BBB+ or better by the S&P.

[3] Includes 34 companies spread over various market sectors.

[4] Includes 26 companies spread over various market sectors.