Income Taxes (Reconciliation Actual Income Taxes to Expected Federal Corporate Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Tax provision (benefit) at the U.S. rate									$ (4,440)	$ (6,750)	$ (11,190)
Effect of permanent book-tax differences									30	970	2,010
State tax provision									80	(110)	(80)
Valuation allowance for net deferred tax assets									3,900	5,850	1,740
Uncertain tax items									370	450	(240)
Expiration of foreign net operating loss									0	0	2,320
Difference between U.S. and foreign rates									1,000	1,440	0
Other items									300	10	120
Total provision (benefit)	$ (645)	$ 1,325	$ 0	$ 560	$ 580	$ 2,560	$ (800)	$ (480)	$ 1,240	$ 1,860	$ (5,320)