Condensed Consolidated Statements of Cash Flows - Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating activities:
Cash used in operating activities - continuing operations	$ (17,798)	$ (58,060)
Cash used in operating activities - discontinued agribusiness operations	(508)	(17,462)
Net cash used in operating activities	(18,306)	(75,522)
Investing activities:
Purchases of investments	(1,136)	(1,782)
Proceeds from sale of investments	623	7,055
Proceeds from maturity of investments	18	1,343
Purchases of property, plant and equipment	(249)	(1,999)
Increase in restricted cash	(650)
Other investing activities, net	667	79
Cash provided by (used in) investing activities - continuing operations	(727)	4,696
Cash provided by investing activities - discontinued agribusiness operations	8	100,098
Net cash provided by (used in) investing activities	(719)	104,794
Financing activities:
Repayment of debt	(105,488)	(174,533)
Proceeds from debt	106,663	125,294
Payment of withholding taxes on exercise of restricted stock units	(46)	(370)
Debt issuance costs	(113)	(698)
Purchases of stock of consolidated subsidiary	(1,000)
Distribution to noncontrolling interests		(16)
Cash provided by (used in) financing activities	16	(50,323)
Decrease in cash and cash equivalents	(19,009)	(21,051)
Cash and cash equivalents, beginning of the period	57,400	62,978
Cash and cash equivalents, end of the period	38,391	41,927
Less cash and cash equivalents of discontinued agribusiness operations at the end of the period	438	1,773
Cash and cash equivalents of continuing operations, end of the period	37,953	40,154
Supplemental cash flow information:
Payments (refunds) of federal and state income taxes	187	(72)
Interest paid, net of amounts capitalized (primarily in discontinued agribusiness operations)		3,295
Unpaid liability incurred for development costs		1,332
Distribution of debt and equity securities in satisfaction of deferred compensation liability (including 22,644 shares of treasury stock)	856
Issuance of common stock for vested restricted stock units	$ 274	$ 680