Note 10 - Investments in Financial Instruments (Tables)

3 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	December 31, 2013						September 30, 2013
	(Unaudited)
	Aggregate fair value		Amortized/Adjusted cost basis		Pretax unrealized gains		Aggregate fair value		Amortized/Adjusted cost basis		Pretax unrealized gains
Marketable securities
Common stocks	$	143,278,000	$	43,042,000	$	100,235,000	$	129,699,000	$	43,042,000	$	86,657,000
Bonds		7,469,000		4,935,000		2,535,000		7,295,000		4,934,000		2,361,000
Total	$	150,747,000	$	47,977,000	$	102,770,000	$	136,994,000	$	47,976,000	$	89,018,000