Note 7: Loans and Allowance For Loan Losses: Schedule of Loan Portfolio Credit Quality Internal Grading System (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Satisfactory
One- to four-family residential construction	$ 30,135	$ 21,436
Subdivision construction	32,191	45,754
Land development	51,016	41,179
Commercial construction	124,612	119,589
Owner occupied one- to four-family residential	80,059	86,725
Non-owner occupied one- to four-family residential	134,147	129,458
Commercial real estate	568,150	542,712
Other residential	253,493	222,940
Commercial business	244,179	225,664
Industrial revenue bonds	41,424	57,640
Consumer auto	74,679	59,237
Consumer other	81,813	77,006
Home equity lines of credit	53,206	46,940
FDIC-supported loans, net of discounts (TeamBank)	87,873	128,875
FDIC-supported loans, net of discounts (Vantus Bank)	105,050	123,036
FDIC-supported loans, net of discounts (Sun Security Bank)	101,951	144,626
FDIC-supported loans, net of discounts (InterBank)	269,889
Total Portfolio by Internal Grading System	2,333,867	2,072,817
Watch
One- to four-family residential construction		2,354
Subdivision construction	2,990	2,701
Land development	5,201	20,902
Owner occupied one- to four-family residential	636	1,018
Non-owner occupied one- to four-family residential	6,071	5,232
Commercial real estate	52,279	51,757
Other residential	9,466	13,262
Commercial business	7,839	5,403
Industrial revenue bonds	675
Total Portfolio by Internal Grading System	85,157	102,629
Special Mention
Land development		245
Non-owner occupied one- to four-family residential		249
Commercial real estate		13,384
Commercial business		638
Total Portfolio by Internal Grading System		14,516
Substandard
One- to four-family residential construction	612	186
Subdivision construction	2,206	12,685
Land development	7,747	6,445
Owner occupied one- to four-family residential	3,391	4,251
Non-owner occupied one- to four-family residential	8,636	10,842
Commercial real estate	30,523	32,004
Other residential	9,312	7,540
Commercial business	1,107	4,679
Industrial revenue bonds	2,110	2,110
Consumer auto	159	131
Consumer other	742	534
Home equity lines of credit	177	174
Total Portfolio by Internal Grading System	66,722	81,581
Doubtful
Commercial business	2,316
Total Portfolio by Internal Grading System	2,316
Total for Portfolio
One- to four-family residential construction	30,747	23,976
Subdivision construction	37,387	61,140
Land development	63,964	68,771
Commercial construction	124,612	119,589
Owner occupied one- to four-family residential	84,086	91,994
Non-owner occupied one- to four-family residential	148,854	145,781
Commercial real estate	650,952	639,857
Other residential	272,271	243,742
Commercial business	255,441	236,384
Industrial revenue bonds	44,209	59,750
Consumer auto	74,838	59,368
Consumer other	82,555	77,540
Home equity lines of credit	53,383	47,114
FDIC-supported loans, net of discounts (TeamBank)	87,873	128,875
FDIC-supported loans, net of discounts (Vantus Bank)	105,050	123,036
FDIC-supported loans, net of discounts (Sun Security Bank)	101,951	144,626
FDIC-supported loans, net of discounts (InterBank)	269,889
Total Portfolio by Internal Grading System	$ 2,488,062	$ 2,271,543