Segment Information (Schedule Of Information By Geographic Location) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Segment Reporting Information [Line Items]
Total revenue									$ 26,006	$ 17,885	$ 17,674
Operating income (loss)	(127)	733	305	632	160	194	(504)	217	1,543	67	391
Long-lived assets	9,101				1,207				9,101	1,207	1,795
Domestic [Member]
Segment Reporting Information [Line Items]
Total revenue									22,915	14,671	14,229
Operating income (loss)									2,497	257	404
Long-lived assets	9,018				1,139				9,018	1,139	1,741
International [Member]
Segment Reporting Information [Line Items]
Total revenue									3,958	4,042	4,326
Operating income (loss)									(954)	(190)	(13)
Long-lived assets	83				68				83	68	54
Intercompany Eliminations [Member]
Segment Reporting Information [Line Items]
Total revenue									$ (867)	$ (828)	$ (881)