Equity - Schedule of Stock Options Activity (Details) (USD $)	12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2012
Number of Shares
Outstanding, beginning of period (in shares)	1,745,948
Granted (in shares)	44,825
Exercised (in shares)	(120,761)
Forfeited (in shares)	(51,918)
Expired (in shares)	(186,904)
Outstanding, end of period (in shares)	1,431,190		1,745,948
Exercisable as of end of period (in shares)	1,280,768
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 17.78
Granted (in dollars per share)	$ 4.65
Exercised (in dollars per share)	$ 4.86
Forfeited (in dollars per share)	$ 4.72
Expired (in dollars per share)	$ 16.80
Outstanding, end of period (in dollars per share)	$ 19.06		$ 17.78
Exercisable as of end of period (in dollars per share)	$ 20.74
Weighted Average Remaining Contractual Life (in years):
Outstanding as of end of period (in years)	3 years 5 months 13 days
Exercisable as of end of period (in years)	2 years 11 months 6 days
Aggregate Intrinsic Value (in thousands)
Exercised	$ 100,000	[1]	$ 94,000	$ 12,000
Outstanding at End of Period	507,000
Exercisable, intrinsic value as of end of period	327,000	[1]
Vested and Expected to Vest as of June 30, 2014
Number of stock options (in shares)	1,409,788
Weighted average exercise price (in dollars per share)	$ 19.28
Weighted average remaining contractual term (in years)	3 years 4 months 17 days
Vested and expected to vest, intrinsic value as of end of period	484,000	[1]
Employee stock options
Unrecognized Stock-based Compensation Expense:
Stock options, average minimum vesting period (in years)	4 years
Stock options, average maximum vesting period (in years)	5 years
Stock options, contractual life (in years)	10 years
Unrecognized compensation expense	$ 500,000
Unrecognized compensation expense, period for recognition	2 years 7 months 7 days

[1] Intrinsic value for stock options represents the “in-the-money” portion or the positive variance between a stock option's exercise price and the underlying stock price. For the fiscal ended September 30, 2013 and 2012 the intrinsic value of options exercised was $94,000 and $12,000.