Note 2 - Allowance for Credit Losses: Troubled Debt Restructurings on Financing Receivables (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Current 12 months
Financing Receivable, Modifications, Number of Contracts	2,969	2,440	6,852	7,584
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 10,623,358	$ 8,770,352	$ 24,430,301	$ 25,060,206
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 10,158,029	$ 8,088,722	$ 23,424,828	$ 23,515,288
Current 12 months | Live Check Consumer Loans
Financing Receivable, Modifications, Number of Contracts	466	326	1,072	1,122
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 893,182	$ 526,181	$ 2,030,007	$ 1,826,042
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 877,875	$ 510,145	$ 1,984,766	$ 1,773,540
Current 12 months | Premier Consumer Loans
Financing Receivable, Modifications, Number of Contracts	100	70	215	233
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 598,628	$ 471,275	$ 1,291,060	$ 1,546,354
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 592,019	$ 450,836	$ 1,248,826	$ 1,498,776
Current 12 months | Other Consumer Loans
Financing Receivable, Modifications, Number of Contracts	2,246	1,892	5,189	5,822
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 8,214,149	$ 7,048,324	$ 18,663,687	$ 19,844,595
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 7,799,661	$ 6,436,597	$ 17,805,933	$ 18,474,903
Current 12 months | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts	6	15	17	23
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 50,236	$ 125,994	$ 219,065	$ 234,189
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 50,236	$ 125,192	$ 218,840	$ 233,387
Current 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts	151	137	359	384
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 867,163	$ 598,578	$ 2,226,482	$ 1,609,026
Financing Receivable, Troubled Debt Restructuring, Postmodification	$ 838,238	$ 565,952	$ 2,166,463	$ 1,534,682
Previous 12 months
Financing Receivable, Modifications, Number of Contracts	1,182	1,447	2,258	3,234
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 2,854,397	$ 3,142,284	$ 5,395,956	$ 6,679,246
Previous 12 months | Live Check Consumer Loans
Financing Receivable, Modifications, Number of Contracts	229	275	459	665
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 440,115	$ 380,724	$ 864,096	$ 961,371
Previous 12 months | Premier Consumer Loans
Financing Receivable, Modifications, Number of Contracts	25	38	54	81
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 140,585	$ 199,325	$ 314,611	$ 465,502
Previous 12 months | Other Consumer Loans
Financing Receivable, Modifications, Number of Contracts	868	1,065	1,647	2,338
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 2,012,648	$ 2,405,262	$ 3,818,539	$ 4,913,928
Previous 12 months | Real Estate Loans
Financing Receivable, Modifications, Number of Contracts	0	1	0	1
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 0	$ 1,832	$ 0	$ 1,832
Previous 12 months | Sales Finance Contracts
Financing Receivable, Modifications, Number of Contracts	60	68	98	149
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 261,049	$ 155,141	$ 398,710	$ 336,613