Fair Value Measurements - Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis (Details) - USD ($)	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock(1)	$ 23,665,000	$ 22,632,000
Estimate of Fair Value Measurement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock(1)	23,665,000	22,632,000
Estimate of Fair Value Measurement | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock(1)	19,132,000	18,025,000
Estimate of Fair Value Measurement | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock(1)	4,533,000	4,607,000
Estimate of Fair Value Measurement | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Preferred stock(1)	0	0
Estimate of Fair Value Measurement | Coffee-related Derivative Instruments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	264,000	5,153,000
Coffee-related derivative liabilities	4,290,000
Coffee-related derivative	2,000	862,000
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	27,000
Estimate of Fair Value Measurement | Coffee-related Derivative Instruments | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	264,000	5,153,000
Coffee-related derivative liabilities	4,290,000
Coffee-related derivative	2,000	862,000
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	27,000
Estimate of Fair Value Measurement | Coffee-related Derivative Instruments | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	0	0
Coffee-related derivative liabilities	0
Coffee-related derivative	0	0
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	0
Estimate of Fair Value Measurement | Coffee-related Derivative Instruments | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Coffee-related derivative assets	0	0
Coffee-related derivative liabilities	0
Coffee-related derivative	0	$ 0
Price Risk Derivative Instruments Not Designated as Hedging Instruments Asset, at Fair Value	$ 0