Investments (Schedule of Amortized Cost, Fair Value, Credit Rating) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Amortized Cost	$ 19,226,841	$ 21,529,779
States and Political Subdivisions General Obligations [Member]
Amortized Cost	265,473
Estimated Fair Value	263,184
States and Political Subdivisions General Obligations [Member] | Us States and Political Subdivisions Debt Securities [Member] | Bellingham Wash [Member]
Amortized Cost	108,845
Estimated Fair Value	$ 106,783
Credit Rating	AA+
States and Political Subdivisions General Obligations [Member] | Us States and Political Subdivisions Debt Securities [Member] | Longview Washington Refunding [Member]
Amortized Cost	$ 156,628
Estimated Fair Value	$ 156,401
Credit Rating	Aa3