Consolidated Balance Sheet (Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014
Common Class A [Member]
Class of common stock - par value (in dollars per share)	$ 0	$ 0	$ 0
Class of common stock - shares authorized (in shares)	10,000,000	10,000,000	10,000,000
Class of common stock - shares outstanding (in shares)	1,163,349	1,163,349	1,163,349
Class of common stock - excluding shares in treasury (in shares)	15,795	15,795	15,795
Common Class B [Member]
Class of common stock - par value (in dollars per share)	$ 0	$ 0	$ 0
Class of common stock - shares authorized (in shares)	2,500,000	2,500,000	2,500,000
Class of common stock - shares outstanding (in shares)	474,866	474,866	474,866
Class of common stock - excluding shares in treasury (in shares)	667	667	667
Preferred stock - par value (in dollars per share)	$ 0	$ 0	$ 0
Preferred stock - shares authorized (in shares)	1,000,000	1,000,000	1,000,000
Preferred stock - shares outstanding (in shares)	0	0	0