Note 9 - Investments in Marketable Securities (Tables)

3 Months Ended

Dec. 31, 2015

Notes Tables

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

	December 31, 2015						September 30, 2015
	(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	$	171,798,000	$	53,442,000	$	118,356,000	$	158,705,000	$	49,604,000	$	109,101,000
Bonds		7,186,000		4,940,000		2,246,000		7,336,000		4,939,000		2,397,000
Total	$	178,984,000	$	58,382,000	$	120,602,000	$	166,041,000	$	54,543,000	$	111,498,000