Financing Arrangements (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	6 Months Ended	12 Months Ended		3 Months Ended		6 Months Ended
	Sep. 30, 2012	Mar. 31, 2013	Sep. 30, 2012	Mar. 30, 2012	Mar. 31, 2013 Note Warrant	Mar. 31, 2012 Note Warrant	Mar. 31, 2013 Note Warrant	Mar. 31, 2012 Note Warrant
Subsidiary, Sale of Stock [Line Items]
Line of credit facility, maximum borrowing capacity				$ 2,000
Line of credit facility, amount outstanding		900		1,500
Amount repaid	600
Floating interest rate on outstanding revolving line of credit			1.50%
Interest rate floor on the SVB system			3.25%
Debt instrument amount				4,000
Warrant for stock options				185
Subordinated note maturity date		Feb. 28, 2019
Rate of subordinated note		10.00%
Period of interest rate premium on prinicpal payments		3 years
Share Price		$ 11.54
Trading period prior to the issuance of the warrants		45 days
Fair value of warrants		1,100
Expected life							7 years
Expected volatility							68.18%
Risk free interest rate							1.61%
Dividend yield							0.00%
Unamortized debt discount	1,017	938	1,017
Life of subordinated note		7 years
Interest Expense					$ 39	$ 1	$ 78	$ 1