Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) (USD $)	Jun. 30, 2014		Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock	$ 22,632,000		$ 20,546,000
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock	22,632,000	[1]	20,542,000	[1]
Futures, options and other derivative assets			4,000	[1]
Estimate of Fair Value Measurement [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock	18,025,000	[1]	15,738,000	[1]
Futures, options and other derivative assets			0	[1]
Estimate of Fair Value Measurement [Member] | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock	4,607,000	[1]	4,804,000	[1]
Futures, options and other derivative assets			4,000	[1]
Estimate of Fair Value Measurement [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock	0	[1]	0	[1]
Futures, options and other derivative assets			0	[1]
Estimate of Fair Value Measurement [Member] | Coffee-related Derivative Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	5,153,000
Coffee-related derivative liabilities			10,460,000
Coffee-related derivative	862,000		565,000
Estimate of Fair Value Measurement [Member] | Coffee-related Derivative Instruments [Member] | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	5,153,000
Coffee-related derivative liabilities			10,460,000
Coffee-related derivative	862,000		565,000
Estimate of Fair Value Measurement [Member] | Coffee-related Derivative Instruments [Member] | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	0
Coffee-related derivative liabilities			0
Coffee-related derivative	0		0
Estimate of Fair Value Measurement [Member] | Coffee-related Derivative Instruments [Member] | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	0
Coffee-related derivative liabilities			0
Coffee-related derivative	0		0
Estimate of Fair Value Measurement [Member] | Derivative Liabilities - Interest Rate Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities — interest rate swap			25,000
Estimate of Fair Value Measurement [Member] | Derivative Liabilities - Interest Rate Swap | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities — interest rate swap			0
Estimate of Fair Value Measurement [Member] | Derivative Liabilities - Interest Rate Swap | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities — interest rate swap			25,000
Estimate of Fair Value Measurement [Member] | Derivative Liabilities - Interest Rate Swap | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities — interest rate swap			$ 0

[1] Included in "Short-term investments" on the consolidated balance sheets.