Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Current assets:
Cash and cash equivalents	$ 9,047	$ 15,598
Restricted cash	82	544
Accounts receivable, net of allowance of $3,279 and $3,332, respectively	36,939	34,875
Inventory	35,192	33,166
Prepaid expenses and other current assets	14,146	7,168
Total current assets	95,406	91,351
Property, plant, and equipment, net	47,896	46,786
Goodwill	20,384	20,384
Other intangible assets, net	3,428	5,866
Equity method investment	0	2,374
Other non-current assets, net of allowance of $3,419 and $3,641, respectively	2,752	3,537
Total assets	169,866	170,298
Current liabilities:
Borrowings from credit facility	19,316	17,557
Accounts payable	38,814	26,581
Warrant liability	670	601
Accrued expenses and other current liabilities	32,635	22,319
Total current liabilities	91,435	67,058
Asset retirement obligations	5,004	4,800
Deferred gain associated with sale of assets	3,400	0
Other long-term liabilities	1,004	4
Total liabilities	100,843	71,862
Commitments and contingencies (Note 15)
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; 24,412 shares issued and 24,372 shares outstanding as of September 30, 2012; 23,521 shares issued and 23,481 shares outstanding as of September 30, 2011	722,345	713,063
Treasury stock, at cost; 40 shares	(2,071)	(2,083)
Accumulated other comprehensive income	1,376	912
Accumulated deficit	(652,627)	(613,456)
Total shareholders equity	69,023	98,436
Total liabilities and shareholders equity	$ 169,866	$ 170,298