10) Derivative Instruments: Schedule of Derivative Assets at Fair Value (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Loan Commitments
Derivative, Notional Amount	$ 839,341,522	$ 224,202,514
Derivative Asset, Notional Amount	12,702,945	2,722,580
Derivative Liability, Notional Amount	1,658,581	231,347
Call Options
Derivative, Notional Amount	3,126,800	1,813,500
Derivative Asset, Notional Amount	0	0
Derivative Liability, Notional Amount	73,451	62,265
Put Options
Derivative, Notional Amount	2,755,200	1,573,100
Derivative Asset, Notional Amount	0	0
Derivative Liability, Notional Amount	49,136	22,282
Net Derivatives Loan Commitments
Derivative, Notional Amount	845,223,522	227,589,114
Derivative Asset, Notional Amount	12,702,945	2,722,580
Derivative Liability, Notional Amount	$ 1,781,168	$ 315,894