GREAT SOUTHERN BANCORP, INC. AND SUBSIDIARIES - CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Held-to-maturity securities fair value	$ 1,098	$ 2,101
Allowance for loan losses	40,307	41,232
Preferred stock par value	$ 0.01	$ 0.01
Preferred stock authorized shares	1,000,000	1,000,000
Preferred stock issued shares	57,943	57,943
Preferred stock shares outstanding	57,943	57,943
Preferred stock liquidation amount	$ 1,000	$ 1,000
Common stock par value	$ 0.01	$ 0.01
Common stock shares authorized	20,000,000	20,000,000
Common stock shares issued	13,589,580	13,479,856
Common stock shares outstanding	13,589,580	13,479,856