12) Mortgage Servicing Rights: Schedule of Finite-Lived Intangible Assets, Future Amortization Expense, Mortgage Servicing Rights (Details)	Mar. 31, 2020 USD ($)
Text Block [Abstract]
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year	$ 4,027,387
Finite-Lived Intangible Assets, Amortization Expense, Year Two	2,899,758
Finite-Lived Intangible Assets, Amortization Expense, Year Three	2,191,385
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,678,517
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,311,478
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	4,668,606
Finite-Lived Intangible Assets, Accumulated Amortization	$ 16,777,131