NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Satisfactory \| Automobile Loan
Loan Portfolio Internal Grading System Classification	$ 297,174	$ 354,588
Satisfactory \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	31,139	20,275
Satisfactory \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	13,749	15,602
Satisfactory \| Land Development
Loan Portfolio Internal Grading System Classification	41,943	39,171
Satisfactory \| Commercial Construction
Loan Portfolio Internal Grading System Classification	1,258,564	1,068,352
Satisfactory \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	226,388	188,706
Satisfactory \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	109,007	117,103
Satisfactory \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,297,215	1,218,431
Satisfactory \| Other Residential
Loan Portfolio Internal Grading System Classification	783,381	742,237
Satisfactory \| Commercial Business
Loan Portfolio Internal Grading System Classification	339,344	344,479
Satisfactory \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	20,021	21,859
Satisfactory \| Consumer Loan
Loan Portfolio Internal Grading System Classification	59,390	62,682
Satisfactory \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	114,240	114,860
Satisfactory \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	184,105	209,657
Satisfactory \| Loans Receivable
Loan Portfolio Internal Grading System Classification	4,775,660	4,518,002
Watch \| Automobile Loan
Loan Portfolio Internal Grading System Classification	0	0
Watch \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	631	518
Watch \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	2,073	2,362
Watch \| Land Development
Loan Portfolio Internal Grading System Classification	4,700	4,800
Watch \| Commercial Construction
Loan Portfolio Internal Grading System Classification	0	0
Watch \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	0	0
Watch \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	1,423	389
Watch \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	3,726	9,909
Watch \| Other Residential
Loan Portfolio Internal Grading System Classification	1,821	1,532
Watch \| Commercial Business
Loan Portfolio Internal Grading System Classification	5,048	6,306
Watch \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	0	0
Watch \| Consumer Loan
Loan Portfolio Internal Grading System Classification	12	0
Watch \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	0	0
Watch \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	0	0
Watch \| Loans Receivable
Loan Portfolio Internal Grading System Classification	19,434	25,816
Special Mention \| Automobile Loan
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Land Development
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Commercial Construction
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Other Residential
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Commercial Business
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Consumer Loan
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	0	0
Special Mention \| Loans Receivable
Loan Portfolio Internal Grading System Classification	0	0
Substandard \| Automobile Loan
Loan Portfolio Internal Grading System Classification	1,803	2,554
Substandard \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	0	0
Substandard \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	91	98
Substandard \| Land Development
Loan Portfolio Internal Grading System Classification	0	0
Substandard \| Commercial Construction
Loan Portfolio Internal Grading System Classification	0	0
Substandard \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	1,823	1,809
Substandard \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	1,986	1,976
Substandard \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	7,025	6,989
Substandard \| Other Residential
Loan Portfolio Internal Grading System Classification	0	1,876
Substandard \| Commercial Business
Loan Portfolio Internal Grading System Classification	2,920	2,066
Substandard \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	0	0
Substandard \| Consumer Loan
Loan Portfolio Internal Grading System Classification	650	686
Substandard \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	502	579
Substandard \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	31	12
Substandard \| Loans Receivable
Loan Portfolio Internal Grading System Classification	16,831	18,645
Doubtful \| Automobile Loan
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Land Development
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Commercial Construction
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Other Residential
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Commercial Business
Loan Portfolio Internal Grading System Classification	0	500
Doubtful \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Consumer Loan
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	0	0
Doubtful \| Loans Receivable
Loan Portfolio Internal Grading System Classification	0	500
Total for Portfolio \| Automobile Loan
Loan Portfolio Internal Grading System Classification	298,977	357,142
Total for Portfolio \| One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	31,770	20,793
Total for Portfolio \| Subdivision Construction
Loan Portfolio Internal Grading System Classification	15,913	18,062
Total for Portfolio \| Land Development
Loan Portfolio Internal Grading System Classification	46,643	43,971
Total for Portfolio \| Commercial Construction
Loan Portfolio Internal Grading System Classification	1,258,564	1,068,352
Total for Portfolio \| Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	228,211	190,515
Total for Portfolio \| Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	112,416	119,468
Total for Portfolio \| Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,307,966	1,235,329
Total for Portfolio \| Other Residential
Loan Portfolio Internal Grading System Classification	785,202	745,645
Total for Portfolio \| Commercial Business
Loan Portfolio Internal Grading System Classification	347,312	353,351
Total for Portfolio \| Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	20,021	21,859
Total for Portfolio \| Consumer Loan
Loan Portfolio Internal Grading System Classification	60,052	63,368
Total for Portfolio \| Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	114,742	115,439
Total for Portfolio \| Acquired Loans Net of Discount
Loan Portfolio Internal Grading System Classification	184,136	209,669
Total for Portfolio \| Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 4,811,925	$ 4,562,963

NOTE 6: LOANS AND ALLOWANCE FOR LOAN LOSSES: Financing Receivable Credit Quality Indicators (Details) - USD ($)
$ in Thousands

Jun. 30, 2018

Dec. 31, 2017

Satisfactory | Automobile Loan

Loan Portfolio Internal Grading System Classification

$ 297,174

$ 354,588

Satisfactory | One-to-Four-Family Residential Construction

Loan Portfolio Internal Grading System Classification

31,139

20,275

Satisfactory | Subdivision Construction