Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Allowance for doubtful accounts receivable	$ 481	$ 500
Serial preferred shares, par value
Serial preferred shares, shares authorized	1,000	1,000
Common shares, par value	$ 1	$ 1
Common shares, shares authorized	10,000	10,000
Common shares, shares issued	5,407	5,366
Common shares, shares outstanding	5,407	5,366