Note 2 - Allowance For Loan Losses: Troubled Debt Restructurings on Financing Receivables (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Three months ended June 30, 2015
Financing Receivable, Modifications, Number of Contracts	2,110
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 4,587,749
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 4,319,117
Three months ended June 30, 2015 | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts	2,031
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 4,362,336
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 4,111,093
Three months ended June 30, 2015 | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts	12
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 101,501
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 95,640
Three months ended June 30, 2015 | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts	67
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 123,912
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 112,384
Three months ended June 30, 2014
Financing Receivable, Modifications, Number of Contracts		1,036
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 3,465,775
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 3,206,132
Three months ended June 30, 2014 | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts		972
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 3,149,774
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 2,895,294
Three months ended June 30, 2014 | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts		25
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 209,797
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 209,742
Three months ended June 30, 2014 | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts		39
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 106,204
Financing Receivable, Modifications, Post-Modification Recorded Investment		$ 101,096
Six months ended June 30, 2015
Financing Receivable, Modifications, Number of Contracts			3,190
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 7,416,922
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 7,002,884
Six months ended June 30, 2015 | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts			3,055
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 7,022,140
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 6,628,457
Six months ended June 30, 2015 | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts			21
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 177,574
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 171,663
Six months ended June 30, 2015 | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts			114
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 217,208
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 202,764
Six months ended June 30, 2014
Financing Receivable, Modifications, Number of Contracts				1,886
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 6,149,265
Financing Receivable, Modifications, Post-Modification Recorded Investment				$ 5,702,154
Six months ended June 30, 2014 | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts				1,770
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 5,645,802
Financing Receivable, Modifications, Post-Modification Recorded Investment				$ 5,207,480
Six months ended June 30, 2014 | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts				38
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 299,528
Financing Receivable, Modifications, Post-Modification Recorded Investment				$ 299,472
Six months ended June 30, 2014 | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts				78
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 203,935
Financing Receivable, Modifications, Post-Modification Recorded Investment				$ 195,202
Three months ended June 30, 2015, Previous 12 months
Financing Receivable, Modifications, Number of Contracts	585
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 826,421
Three months ended June 30, 2015, Previous 12 months | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts	560
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 798,237
Three months ended June 30, 2015, Previous 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts	25
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 28,184
Three months ended June 30, 2014, Previous 12 months
Financing Receivable, Modifications, Number of Contracts		223
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 398,024
Three months ended June 30, 2014, Previous 12 months | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts		215
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 387,551
Three months ended June 30, 2014, Previous 12 months | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts		1
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 3,526
Three months ended June 30, 2014, Previous 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts		7
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 6,947
Six months ended June 30, 2015, Previous 12 months
Financing Receivable, Modifications, Number of Contracts			760
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 1,124,490
Six months ended June 30, 2015, Previous 12 months | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts			728
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 1,089,968
Six months ended June 30, 2015, Previous 12 months | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts			1
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 1,000
Six months ended June 30, 2015, Previous 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts			31
Financing Receivable, Modifications, Pre-Modification Recorded Investment			$ 33,522
Six months ended June 30, 2014, Previous 12 months
Financing Receivable, Modifications, Number of Contracts				382
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 692,559
Six months ended June 30, 2014, Previous 12 months | Cosumer Loans
Financing Receivable, Modifications, Number of Contracts				368
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 675,801
Six months ended June 30, 2014, Previous 12 months | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts				1
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 3,526
Six months ended June 30, 2014, Previous 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts				13
Financing Receivable, Modifications, Pre-Modification Recorded Investment				$ 13,232