CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating activities:
Net loss	$ (80,879)	$ (59,605)	$ (29,194)
Adjustments to reconcile net loss to net cash used in operating activities:
Provision (benefit) for deferred income taxes	(2,913)	(3,315)	2,870
Depreciation and amortization expense	2,212	3,054	2,619
Stock based compensation expense	3,616	7,067	$ 5,977
Impairment loss on investment in unconsolidated affiliate	20,696	1,078
Gain on sale of available-for-sale investments	$ (1,101)	(4,733)	$ (23,642)
Foreign exchange loss on liquidation of subsidiary		9,336
Loss from discontinued operations, net	$ 49,268	$ 14,074	$ 23,265
Fair value adjustment of contingent consideration	(1,195)
Impairment loss on intangible and long-lived assets	3,282	$ 13,084	$ 1,410
Equity in loss of unconsolidated affiliate	3,422	2,076	565
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Notes and other receivables	227	(785)	(1,959)
Real estate, water, and intangible assets	$ (40,235)	(132,005)	(32,375)
Income taxes		3,624	151
Other assets	$ (204)	(2,613)	(2,150)
Deferred compensation	909	423	1,553
Accounts payable and accrued expenses	11,311	2,628	7,702
Other operating activities, net	94	(75)	998
Cash used in operating activities - continuing operations	(31,490)	(146,687)	(42,210)
Cash used in operating activities - discontinued agribusiness operations	(17,433)	(1,405)	(16,354)
Net cash used in operating activities	(48,923)	(148,092)	(58,564)
Investing activities:
Proceeds from the sale of investments	7,938	$ 31,036	22,676
Proceeds from maturity of investments	1,343		1,809
Purchases of debt and equity securities	$ (2,316)	$ (11,046)	$ (20,290)
Increase in restricted deposits		(250)
Purchases of property, plant and equipment	$ (3,108)	(5,270)	$ (3,568)
Cash acquired (used) in the acquisition of a consolidated subsidiary		(14,006)	174
Other investing activities, net	$ 213	40	402
Cash provided by (used in) investing activities - continuing operations	4,070	504	1,203
Cash provided by (used in) investing activities - discontinued agribusiness operations	102,523	(5,396)	1,519
Net cash provided by (used in) investing activities	$ 106,593	$ (4,892)	2,722
Financing activities:
Proceeds from issuance of common stock of subsidiary, net of expenses			105,454
Proceeds from debt	$ 147,170	$ 184,684	67,868
Repayment of debt	(209,068)	(101,462)	$ (79,157)
Debt issuance costs	(827)	(1,920)
Payment of withholding taxes on exercise of restricted stock units	$ (496)	(5,737)
Proceeds from the sale of treasury stock		220
Other financing activities, net	$ (27)	242
Cash used in financing activities	$ (63,248)	76,027	$ 94,165
Effect of exchange rate changes on cash		1,896	(399)
Net increase (decrease) in cash and cash equivalents	$ (5,578)	(75,061)	37,924
Cash and cash equivalents, beginning of year	62,978	138,039	100,115
Cash and cash equivalents, end of year	57,400	62,978	138,039
Less cash and cash equivalents of discontinued agribusiness operations, end of year	938	301	49
Cash and cash equivalents	56,462	62,677	137,990
Cash paid (received) during the year for:
Payment (refund) of federal and state income taxes	(67)	(3,817)	185
Interest paid, net of amounts capitalized	3,295	5,183	6,801
Non-cash investing and financing activities:
Issuance of common stock for vested restricted stock units	1,609	11,463
Fair value of assets acquired in Citizens acquisition		19,418
Cash paid for the acquisition of consolidated subsidiaries		(14,006)
Contingent consideration and liabilities assumed in Citizens acquisition		5,412
Accrued debt issuance costs		473
Exercise of land purchase options acquired with acquisition of business	195	141
Unpaid liability incurred for construction costs	$ 388	$ 917	98
Mortgage incurred to purchase real estate			6,605
Increase in assets from business combination with Spigit			21,432
Increase in liabilities from business combination with Spigit			20,377
Decrease in assets from disposition of Spigit			24,800
Decrease in liabilities from disposition of Spigit			18,900
Conversion of note receivable to common stock in Spigit			$ 820