INVESTMENT SECURITIES (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Equity Securities [Abstract]
Options expiration date	Mar. 08, 2015
Trading Securities [Abstract]
Net unrealized gains on trading securities		$ 1,100,000
Realized gains		909,000
Available-for-sale Securities [Abstract]
Other-than-temporary impairment on investments		74,000	0	809,000
The Bancorp, Inc. [Member]
Trading Securities [Abstract]
Number of shares sold that were held in trust (in shares)		33,509	90,210
Realized gains		22,000	186,000
Unrealized trading gain			16,000
Available-for-sale Securities [Abstract]
Other-than-temporary impairment on investments				329,000
The Bancorp, Inc. [Member] | Supplemental Employee Retirement Plan [Member] | Chief Executive Officer [Member]
Trading Securities [Abstract]
Number of shares sold that were held in trust (in shares)		33,509
Stock shares held in trust, value			240,000
Realized gains		22,000
Equity Securities [Member] | RSO [Member]
Equity Securities [Abstract]
Options to acquire an additional number of shares (in shares)	2,166	2,166
Options exercise price (in dollars per share)		$ 15.00
Equity Securities [Member] | The Bancorp, Inc. [Member]
Equity Securities [Abstract]
Number of shares held (in shares)	18,972	18,972
CDO Securities [Member]
CDO securities [Abstract]
Number of CDO issuers that represent the retained equity interest		4	3
Available-for-sale Securities [Abstract]
Other-than-temporary impairment on investments		74,000	0	480,000
CDO Securities [Member] | Apidos CLO II [Member]
CDO securities [Abstract]
Minimum investment requirement	2,000,000	$ 2,000,000
Common Stock [Member] | Equity Securities [Member] | RSO [Member]
Equity Securities [Abstract]
Number of shares held (in shares)	2,600,000	2,600,000