Nature of Operations and Liquidity (Liquidity) (Details) - USD ($) |
1 Months Ended | 6 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|---|
Jul. 25, 2017 |
Jan. 31, 2018 |
Jan. 31, 2018 |
Jan. 31, 2017 |
Apr. 30, 2017 |
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| Debt Instrument [Line Items] | |||||
| Approximate cash position | $ 3,803,080 | $ 3,803,080 | |||
| Restricted cash | 190,506 | 190,506 | |||
| Proceeds from term loan | $ 7,500,000 | ||||
| Secured Debt [Member] | Runway Growth Credit Fund [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument face amount | $ 10,000,000 | ||||
| Proceeds from term loan | $ 5,000,000 | $ 2,500,000 | |||
| LIBOR interest rate | 10.00% | ||||
| Debt instrument term | 4 years | ||||
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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