Preferred Stock - Narrative (Details) - USD ($)		3 Months Ended
	Oct. 02, 2017	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (shares)		500,000		500,000
Preferred stock, par value (in US$ per share)		$ 1		$ 1
Convertible Preferred Stock, Terms of Conversion		38.32
Cumulative preferred dividends, undeclared and unpaid		$ 132,000	$ 0
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (shares)		21,000
Preferred stock, issued (in shares)		14,700
Preferred stock, par value (in US$ per share)		$ 1,035
Preferred Stock, Maximum Number Of Shares That Each Holder May Convert After Year One	4,200
Preferred Stock, Maximum Number Of Shares That Each Holder May Convert After Year Two	6,300
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (shares)		21,000
Cumulative Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (shares)		21,000		21,000
Preferred stock, issued (in shares)	14,700	14,700		14,700
Cumulative preferred dividends, undeclared and unpaid		$ 521,292
Cumulative Preferred Stock [Member] | Boyd Coffee Co. [Member]
Class of Stock [Line Items]
Preferred Stock, Dividend Rate, Percentage	3.50%
Preferred stock, par value (in US$ per share)	$ 1,000