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Subsequent Events - Additional Information (Details) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Jul. 01, 2018 | Feb. 14, 2017 | Jun. 30, 2018
Subsequent Event [Line Items] |  |  |
Number of units issued (in shares) |  | 2,090,000 |
Number of units issued, per unit ($ per shares) |  | $ 1.75 |
Proceeds from issuance of common stock and warrants |  | $ 3,657,500 |
Class of warrant description |  |  | Each warrant will have a two-year term and is exercisable at the following exercise prices: in the first year at $2.00 per share or in the second year at $2.25 per share.
Measurement Input Expected Term |  |  |
Subsequent Event [Line Items] |  |  |
Expected term of warrant |  | 2 years |
Exercisable in First Year |  |  |
Subsequent Event [Line Items] |  |  |
Exercise price of warrants |  | $ 2.00 |
Exercisable in Second Year |  |  |
Subsequent Event [Line Items] |  |  |
Exercise price of warrants |  | $ 2.25 |
Subsequent Event |  |  |
Subsequent Event [Line Items] |  |  |
Number of units issued (in shares) | 2,400,000 |  |
Number of units issued, per unit ($ per shares) | $ 1.25 |  |
Proceeds from issuance of common stock and warrants | $ 3,000,000 |  |
Class of warrant description | Each unit consists of one share of common stock and one warrant to purchase one-half of a share of common stock. |  |
Subsequent Event | Measurement Input Expected Term |  |  |
Subsequent Event [Line Items] |  |  |
Expected term of warrant | 2 years |  |
Subsequent Event | Exercisable in First Year |  |  |
Subsequent Event [Line Items] |  |  |
Exercise price of warrants | $ 1.30 |  |
Subsequent Event | Exercisable in Second Year |  |  |
Subsequent Event [Line Items] |  |  |
Exercise price of warrants | $ 1.50 |  |

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- Definition Class of warrant or right description. + References No definition available. + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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Period Type: | instant

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- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
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- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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