Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating activities:
Net income	$ 30,122	$ 3,813
Net loss (income) from discontinued operations	15	(61)
Net income from continuing operations	30,137	3,752
Adjustments to reconcile net income from continuing operations to net cash used in operating activities of continuing operations:
Depreciation and amortization	328	404
Share-based compensation	241	737
Gain on extinguishment of debt upon repurchase of convertible debt	0	(11,284)
Accretion (amortization) of debt net premium/discount from convertible debt	73	(91)
Loss on net change in fair value of derivative assets and liabilities	324	1,813
Gain on sale of oilseed processing business	(31,481)	0
Non-cash restructuring charges	2	2,327
Change in operating assets and liabilities:
Accounts receivable	2,306	(3,260)
Inventories	(623)	(456)
Other assets	(578)	(183)
Accounts payable and accrued liabilities	(2,244)	(5,882)
Deferred revenue	(1,815)	1,407
Net cash used in operating activities of continuing operations	(3,330)	(10,716)
Investing activities:
Proceeds from sale of oilseed processing business, net of transaction costs paid	33,733	0
Purchases of property and equipment, net	(3,014)	(759)
Release of restricted cash	2,500	0
Net cash provided by (used in) investing activities of continuing operations	33,219	(759)
Financing activities:
Proceeds from sale of common stock	6	0
Repurchase of convertible debt	0	(29,714)
Net cash provided by (used in) financing activities of continuing operations	6	(29,714)
Cash used in discontinued operations:
Net cash used in operating activities of discontinued operations	(95)	(590)
Net cash used in discontinued operations	(95)	(590)
Net increase (decrease) in cash and cash equivalents	29,800	(41,779)
Cash and cash equivalents at beginning of year	28,759	87,929
Cash and cash equivalents at end of year	58,559	46,150
Supplemental disclosure of cash flow information:
Interest paid	$ 0	$ 914