Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Current assets:
Cash and cash equivalents	$ 18,144	$ 16,104
Restricted cash	552	815
Accounts receivable, net of allowance of $434 and $3,363, respectively	35,920	41,826
Inventory	32,029	32,115
Prepaid expenses and other current assets	8,746	9,437
Total current assets	95,391	100,297
Property, plant, and equipment, net	48,678	49,744
Goodwill	20,384	20,384
Other intangible assets, net	1,905	2,159
Other non-current assets, net of allowance of $3,575 and $3,533, respectively	885	1,130
Total assets	167,243	173,714
Current liabilities:
Borrowings from credit facility	17,200	21,706
Accounts payable	18,000	19,643
Deferred gain associated with sale of assets	3,400	0
Warrant liability	233	155
Accrued expenses and other current liabilities	22,076	21,597
Total current liabilities	60,909	63,101
Asset retirement obligations	5,105	5,053
Deferred gain associated with sale of assets	0	3,400
Other long-term liabilities	937	981
Total liabilities	66,951	72,535
Commitments and contingencies (Note 12)
Shareholders’ equity:
Preferred stock, $0.0001 par value, 5,882 shares authorized; none issued or outstanding	0	0
Common stock, no par value, 50,000 shares authorized; 30,220 shares issued and 30,180 shares outstanding as of December 31, 2013; 30,022 shares issued and 29,982 shares outstanding as of September 30, 2013	750,388	749,266
Treasury stock, at cost; 40 shares	(2,071)	(2,071)
Accumulated other comprehensive income	1,668	1,623
Accumulated deficit	(649,693)	(647,639)
Total shareholders’ equity	100,292	101,179
Total liabilities and shareholders’ equity	$ 167,243	$ 173,714