GREAT SOUTHERN BANCORP, INC. AND SUBSIDIARIES -- CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statements of Comprehensive Income
Tax effect of unrealized appreciation (depreciation) on available-for-sale securities, taxes (credit)	$ (2,812)	$ 1,648	$ (6,863)	$ 4,102
Tax effect non-credit component of unrealized gain (loss) on available-for-sale debt securities for which a portion of an other-than-temporary impairment has been recognized, taxes (credit)	0	(17)	(20)	(20)
Tax effect of other-than-temporary impairment loss recognized in earnings on available for sale securities	0	0	0	(92)
Tax effect reclassification adjustment for gains included in net income, taxes (credit)	(38)	(177)	(84)	(625)
Tax effect of change in fair value of cash flow hedge, taxes (credit)	$ (24)	$ 0	$ (24)	$ 0