Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Current assets:
Cash and cash equivalents	$ 20,687	$ 16,104
Restricted cash	1,482	815
Accounts receivable, net of allowance of $133 and $3,363, respectively	44,864	41,826
Inventory	26,072	32,115
Deferred income taxes, net	3,908	0
Prepaid expenses and other current assets	6,878	9,437
Total current assets	103,891	100,297
Property, plant, and equipment, net	44,987	49,744
Goodwill	20,384	20,384
Other intangible assets, net	1,142	2,159
Deferred Tax Assets, Net, Noncurrent	20,172	0
Other non-current assets, net of allowance of $3,561 and $3,533, respectively	766	1,130
Total assets	191,342	173,714
Current liabilities:
Borrowings from credit facility	26,518	21,706
Accounts payable	22,292	19,643
Deferred gain associated with sale of assets	3,400	0
Warrant liability	122	155
Accrued expenses and other current liabilities	20,645	21,597
Total current liabilities	72,977	63,101
Asset retirement obligations	5,263	5,053
Deferred gain associated with sale of assets	0	3,400
Other long-term liabilities	755	981
Total liabilities	78,995	72,535
Commitments and contingencies
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; 31,149 shares issued and 31,109 shares outstanding as of September 30, 2014; 30,022 shares issued and 29,982 shares outstanding as of September 30, 2013	755,368	749,266
Treasury stock, at cost; 40 shares	(2,071)	(2,071)
Accumulated other comprehensive income	1,837	1,623
Accumulated deficit	(642,787)	(647,639)
Total shareholders’ equity	112,347	101,179
Total liabilities and shareholders’ equity	$ 191,342	$ 173,714