Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Current assets:
Cash and cash equivalents	$ 111,885	$ 20,687
Restricted cash	375	1,482
Accounts receivable, net of allowance of $462 and $116, respectively	17,319	12,769
Inventory	17,130	15,644
Deferred income taxes, net	0	3,908
Prepaid expenses and other current assets	4,976	5,336
Current assets of discontinued operations	0	44,065
Total current assets	151,685	103,891
Property, plant, and equipment, net	8,925	10,446
Other intangible assets, net	0	82
Deferred income taxes, net	0	20,172
Other non-current assets, net of allowance of $3,561 and $3,561, respectively	297	512
Non-current assets of discontinued operations	0	56,239
Total assets	160,907	191,342
Current liabilities:
Borrowings from credit facility	0	26,518
Accounts payable	7,189	6,804
Deferred gain associated with sale of assets	3,400	3,400
Warrant liability	0	122
Accrued expenses and other current liabilities	13,102	15,209
Current liabilities of discontinued operations	0	20,924
Total current liabilities	23,691	72,977
Asset retirement obligations	1,774	4,543
Other long-term liabilities	0	755
Non-current liabilities of discontinued operations	0	720
Total liabilities	$ 25,465	$ 78,995
Commitments and contingencies (Note 14)
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; 32,586 shares issued and 25,676 shares outstanding as of September 30, 2015; 31,149 shares issued and 31,109 shares outstanding as of September 30, 2014	762,003	755,368
Treasury stock at cost; 6,910 shares as of September 30, 2015 and 40 shares as of September 30, 2014	(47,721)	(2,071)
Accumulated other comprehensive income	847	1,837
Accumulated deficit	(579,687)	(642,787)
Total shareholders’ equity	135,442	112,347
Total liabilities and shareholders’ equity	$ 160,907	$ 191,342