GREAT SOUTHERN BANCORP, INC. AND SUBSIDIARIES -- CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Tax effect of unrealized appreciation (depreciation) on available-for-sale securities, taxes (credit)	$ 1,515	$ 3,266	$ 2,454	$ 2,317
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)	31	200	(3)	247
Tax effect other-than-temporary impairment loss recognized in earnings on available for sale securities taxes (credit)	(92)	(140)	(92)	(140)
Tax effect reclassification adjustment for losses included in net income, taxes (credit)	$ 437	$ 0	$ 447	$ 0