10) Derivative Instruments: Schedule of Derivative Assets at Fair Value (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Loan Commitments
Derivative, Notional Amount	$ 631,137,439	$ 224,202,514
Derivative Asset, Notional Amount	9,465,448	2,722,580
Derivative Liability, Notional Amount	3,699,183	231,347
Call Options
Derivative, Notional Amount	611,100	1,813,500
Derivative Asset, Notional Amount	0	0
Derivative Liability, Notional Amount	8,972	62,265
Put Options
Derivative, Notional Amount	5,481,300	1,573,100
Derivative Asset, Notional Amount	0	0
Derivative Liability, Notional Amount	944,992	22,282
Net Derivatives Loan Commitments
Derivative, Notional Amount	637,229,839	227,589,114
Derivative Asset, Notional Amount	9,465,448	2,722,580
Derivative Liability, Notional Amount	$ 4,653,147	$ 315,894