Preferred Stock - Narrative (Details) - USD ($)		9 Months Ended
	Oct. 02, 2017	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2017
Class of Stock [Line Items]
Preferred Stock, Shares Authorized (shares)		500,000		500,000
Preferred stock, par value (in US$ per share)		$ 1		$ 1
Convertible Preferred Stock, Terms of Conversion		0.225
Cumulative preferred dividends, undeclared and unpaid		$ 257,250	$ 0
Common Stock, Conversion Basis		26.0960334029
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		0
Preferred stock, issued (in shares)	14,700	14,700		0
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
Year 1 [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Terms of Conversion		0.2
Year 2 [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Terms of Conversion		0.3
Year 3 [Member]
Class of Stock [Line Items]
Convertible Preferred Stock, Terms of Conversion		0.5