Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Current assets:
Cash and cash equivalents	$ 5,922	$ 9,047
Restricted cash	330	82
Accounts receivable, net of allowance of $3,281 at March 31, 2013 and $3,279 at September 30, 2012	39,537	36,939
Inventory	35,604	35,192
Prepaid expenses and other current assets	19,350	14,146
Total current assets	100,743	95,406
Property, plant, and equipment, net	50,461	47,896
Goodwill	20,384	20,384
Other intangible assets, net	2,793	3,428
Equity method investment	0
Other non-current assets, net of allowance of $3,413 at March 31, 2013 and $3,419 at September 30, 2012	3,206	2,752
Total assets	177,587	169,866
Current liabilities:
Borrowings from credit facility	20,779	19,316
Accounts payable	24,507	38,814
Warrant liability	700	670
Accrued expenses and other current liabilities	26,105	32,635
Total current liabilities	72,091	91,435
Asset retirement obligations	5,075	5,004
Deferred gain associated with sale of assets	3,400	3,400
Other long-term liabilities	937	1,004
Total liabilities	81,503	100,843
Commitments and contingencies (Note 11)
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; 26,733 shares issued and 26,693 shares outstanding as of March 31, 2013; 24,412 shares issued and 24,372 shares outstanding as of September 30, 2012	734,890	722,345
Treasury stock, at cost; 40 shares	(2,071)	(2,071)
Accumulated other comprehensive income	1,369	1,376
Accumulated deficit	(638,104)	(652,627)
Total shareholders’ equity	96,084	69,023
Total liabilities and shareholders’ equity	$ 177,587	$ 169,866