Schedule I - Condensed Statements Of Comprehensive Loss And Stockholders' Equity (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 29, 2012
Revenue:
Net gains (losses) on principal transactions	$ 29,655	$ 17,395	$ 28,049
Interest revenue	87,067	97,350	122,120
Other revenue	26,172	23,775	21,518
Total revenue	311,288	318,114	353,741
Expenses:
Other expense	26,969	30,892	33,036
Unrealized (loss) gain on warrants valuation	(3,599)	3,613	(3,674)
Loss before income tax expense (benefit)	(6,110)	(6,690)	(5,940)
Income tax (benefit) expense	968	26,755	(1,211)
Net loss	(7,078)	(33,445)	(4,729)
Other comprehensive income (loss):
Realized gain on sale of securities available for sale, net of tax of $(273) in 2014, $(1,277) in 2013 and $(195) in 2012	(508)	(2,373)	(362)
Net gains recognized in other comprehensive income, net of tax of $0 in 2014; $294 in 2013 and $615 in 2012 on available for sale securities	3,080	(6,889)	2,337
Net income (loss) recognized in other comprehensive loss	815	(8,079)	1,980
Comprehensive loss	(6,263)	(41,524)	(2,749)
Beginning Balance	315,286	355,702	357,469
Restricted stock plan	895	1,033	1,093
Shortfall for taxes on vesting of restricted stock			(62)
Deferred compensation plan		(95)	44
Ending Balance	309,872	315,286	355,702
SWS Group, Inc [Member]
Revenue:
Net gains (losses) on principal transactions	97	3,719	(12)
Interest revenue	192	212	225
Other revenue	2,134	474	(785)
Total revenue	2,423	4,405	(572)
Expenses:
Other expense	25,676	21,572	19,115
Unrealized (loss) gain on warrants valuation	(3,599)	3,613	(3,674)
Loss before income tax expense (benefit)	(26,852)	(13,554)	(23,361)
Income tax (benefit) expense	(5,500)	24,787	(7,794)
Loss before equity in earnings of subsidiaries	(21,352)	(38,341)	(15,567)
Equity (loss) in earnings of subsidiaries	14,274	4,896	10,838
Net loss	(7,078)	(33,445)	(4,729)
Other comprehensive income (loss):
Net income (loss) recognized in other comprehensive income of subsidiary, net of tax of $686 in 2014; $(3,378) in 2013 and $644 in 2012 on available for sale securities	1,277	(6,272)	1,195
Realized gain on sale of securities available for sale, net of tax of $(273) in 2014, $(1,277) in 2013 and $(195) in 2012	(508)	(2,373)	(362)
Net gains recognized in other comprehensive income, net of tax of $0 in 2014; $294 in 2013 and $615 in 2012 on available for sale securities	46	566	1,147
Net income (loss) recognized in other comprehensive loss	815	(8,079)	1,980
Comprehensive loss	(6,263)	(41,524)	(2,749)
Beginning Balance	315,286	355,702	357,469
Restricted stock plan	895	1,033	1,093
Shortfall for taxes on vesting of restricted stock			(62)
Deferred compensation plan	(46)	75	(49)
Ending Balance	$ 309,872	$ 315,286	$ 355,702