Finance Receivables (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011
Growers receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Receivable	$ 46,376	$ 46,188	$ 61,209
Reserve	(37,240)	(37,519)	(37,900)
Net Receivable	9,136	8,669	23,309
Current portion, net	9,136	8,669	23,029
Long-term portion, net	0	0	280
Seller financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Receivable	32,686	35,021	37,269
Reserve	0	0	0
Net Receivable	32,686	35,021	37,269
Current portion, net	4,111	4,771	5,275
Long-term portion, net	$ 28,575	$ 30,250	$ 31,994