Note 2 - Allowance For Loan Losses: Allowance for Credit Losses on Financing Receivables (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Details
Loans and Leases Receivable, Allowance, Beginning Balance	$ 47,000,000	$ 36,200,000	$ 48,500,000	$ 33,500,000
Provision for Loan, Lease, and Other Losses	5,777,564	16,458,632	22,442,416	38,910,312
Financing Receivable, Allowance for Credit Losses, Write-downs	(13,003,785)	(14,424,243)	(38,496,984)	(39,852,727)
Financing Receivable, Allowance for Credit Losses, Recovery	3,226,221	2,765,611	10,554,568	8,442,415
Loans and Leases Receivable, Allowance, Ending Balance	43,000,000	41,000,000	43,000,000	41,000,000
Loans and Leases Receivable, Allowance, collectively evaluated for impairment	43,000,000	41,000,000	43,000,000	41,000,000
Impaired Financing Receivable, Related Allowance	535,103,118	520,943,732	535,103,118	520,943,732
Financing Receivable, Collectively Evaluated for Impairment	$ 535,103,118	$ 520,943,732	$ 535,103,118	$ 520,943,732