Segment Information (Schedule Of Information By Geographic Location) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2012
Segment Reporting Information [Line Items]
Total revenue	$ 6,831	$ 6,547	$ 13,652	$ 12,818
Total Operating Income (Loss)	(478)	305	(528)	937
Non-current Assets	8,187		8,187		9,101
Domestic
Segment Reporting Information [Line Items]
Total revenue	6,146	5,794	12,076	11,237
Total Operating Income (Loss)	36	541	375	1,200
Non-current Assets	8,110		8,110		9,018
International
Segment Reporting Information [Line Items]
Total revenue	888	962	2,012	2,012
Total Operating Income (Loss)	(514)	(236)	(903)	(263)
Non-current Assets	77		77		83
Intercompany Eliminations
Segment Reporting Information [Line Items]
Total revenue	(203)	(209)	(436)	(431)
Total Operating Income (Loss)
Non-current Assets