Note 8 - Securities Owned And Securities Sold, But Not Yet Purchased At Fair Value (Detail) - Fair Value Measurements (USD $)	Mar. 31, 2013	Sep. 30, 2012
Securities owned at fair value	$ 2,495,000	$ 752,000
Securities sold, but not yet purchased at fair value	213,000	1,000
Corporate Stocks [Member] | Fair Value, Inputs, Level 1 [Member]
Securities sold, but not yet purchased at fair value	11,000	1,000
Corporate Stocks [Member]
Securities sold, but not yet purchased at fair value	11,000	1,000
Government Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Securities sold, but not yet purchased at fair value	202,000
Government Obligations [Member]
Securities sold, but not yet purchased at fair value	202,000
Fair Value, Inputs, Level 1 [Member] | Corporate Stocks [Member]
Securities owned at fair value	53,000	18,000
Fair Value, Inputs, Level 1 [Member] | Government Obligations [Member]
Securities owned at fair value	2,019,000	678,000
Fair Value, Inputs, Level 1 [Member]
Securities owned at fair value	2,072,000	696,000
Securities sold, but not yet purchased at fair value	213,000	1,000
Fair Value, Inputs, Level 2 [Member] | Corporate Stocks [Member]
Securities owned at fair value	146,000
Fair Value, Inputs, Level 2 [Member] | Restricted Stock [Member]
Securities owned at fair value	277,000	56,000
Fair Value, Inputs, Level 2 [Member]
Securities owned at fair value	423,000	56,000
Corporate Stocks [Member]
Securities owned at fair value	199,000	18,000
Government Obligations [Member]
Securities owned at fair value	2,019,000	678,000
Restricted Stock [Member]
Securities owned at fair value	$ 277,000	$ 56,000