Critical Accounting Policies and Estimates - Additional Information (Details)	12 Months Ended
	Jun. 30, 2018 USD ($) Product	Jun. 30, 2017 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 0	$ 0
Property and equipment, depreciation method	straight-line basis
Number of products sold on consignment | Product	0
Sales discounts and depletion allowances	$ 3,100,000	2,300,000
Sales and marketing expense	1,509,000	1,654,000
General and administrative expense	2,338,000	1,763,000
Shipping and Handling Costs [Member]
Summary Of Significant Accounting Policies [Line Items]
Cost of sales	$ 500,000	$ 600,000
Machinery and Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	5 years
Leasehold Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	5 years
Vehicles [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	5 years
Label Design [Member]
Summary Of Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	5 years
Website design [Member]
Summary Of Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	5 years
Minimum [Member] | Building and Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	20 years
Minimum [Member] | Vineyard Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	7 years
Minimum [Member] | Vineyard Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	10 years
Minimum [Member] | Furniture and Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	5 years
Maximum [Member] | Building and Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	40 years
Maximum [Member] | Vineyard Development [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	15 years
Maximum [Member] | Vineyard Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	20 years
Maximum [Member] | Furniture and Fixtures [Member]
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, useful life	10 years