Debt - Narrative (Details) |
1 Months Ended | 3 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 14, 2020
USD ($)
day
$ / shares
shares
|
Jun. 05, 2020
$ / shares
shares
|
Jan. 22, 2020
USD ($)
lender
note
day
$ / shares
|
Mar. 06, 2019
USD ($)
agreement
$ / shares
shares
|
Nov. 05, 2018
USD ($)
$ / shares
shares
|
Mar. 31, 2019
USD ($)
agreement
|
Oct. 31, 2020
USD ($)
|
Jul. 31, 2020
shares
|
Jun. 08, 2020
shares
|
Apr. 30, 2020
USD ($)
|
|
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Proceeds from issuance or sale of equity | Ìý | Ìý | $ 10,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Net proceeds from convertible debt | Ìý | Ìý | 16,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of loan agreements | agreement | Ìý | Ìý | Ìý | 2 | Ìý | 2 | Ìý | Ìý | Ìý | Ìý |
| Common stock issued for warrants exercised for cash (in shares) | shares | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 192,049 | Ìý | Ìý |
| Cooperman Warrants | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of securities called by warrants or rights (in shares) | shares | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | 192,049 | Ìý |
| Warrant | Cooperman Warrants | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Common stock issued for warrants exercised for cash (in shares) | shares | Ìý | 100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loans Payable | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Write off of unamortized original issue discount and debt issuance costs | Ìý | Ìý | 182,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loan Agreements | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, term | Ìý | Ìý | Ìý | 5 years | Ìý | 18 months | Ìý | Ìý | Ìý | Ìý |
| Stock issued during period, conversion of convertible securities (in shares) | shares | Ìý | Ìý | Ìý | 100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Warrants granted, exercise price (in dollars per share) | $ / shares | Ìý | Ìý | Ìý | $ 6.00 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loan Agreements | Cooperman Warrants | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Warrants granted, exercise price (in dollars per share) | $ / shares | Ìý | $ 5.70 | Ìý | $ 6.00 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Loan Agreements | Warrant | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of warrant agreements | agreement | Ìý | Ìý | Ìý | 2 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Warrants issued as part of senior secured term loans | Ìý | Ìý | Ìý | $ 360,516 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Closing costs treated as debt discounts | Ìý | Ìý | Ìý | 33,693 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Revolving Credit Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Line of credit, maximum borrowing capacity | Ìý | Ìý | Ìý | 5,000,000 | $ 5,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, term | Ìý | Ìý | Ìý | Ìý | 3 years | Ìý | Ìý | Ìý | Ìý | Ìý |
| Leon and Toby Cooperman Family Foundation | Loan Agreements | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Proceeds from issuance or sale of equity | Ìý | Ìý | Ìý | $ 10,000,000 | Ìý | $ 10,000,000 | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, interest rate, stated percentage | Ìý | Ìý | Ìý | 12.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, extension period | Ìý | Ìý | Ìý | 12 months | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| One-time extension fee (as a percent) | Ìý | Ìý | Ìý | Ìý | Ìý | 1.00% | Ìý | Ìý | Ìý | Ìý |
| Proceeds from issuance of secured debt | Ìý | Ìý | Ìý | $ 5,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| One-time extension fee (as a percent) | Ìý | Ìý | Ìý | 1.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Convertible Notes | Convertible Notes Payable | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Face value of loan | $ 10,000,000 | Ìý | $ 5,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of lenders | lender | Ìý | Ìý | 2 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of notes | note | Ìý | Ìý | 2 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Conversion period after issuance date | Ìý | Ìý | 6 months | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Conversion price (in dollars per share) | $ / shares | $ 7.15 | Ìý | $ 7.15 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Average closing price of common stock (in dollars per share) | $ / shares | $ 10.725 | Ìý | $ 10.725 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Consecutive trading day period | day | 20 | Ìý | 20 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, term | Ìý | Ìý | 3 years | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, interest rate, stated percentage | Ìý | Ìý | 7.00% | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt instrument, extension period | Ìý | Ìý | 1 year | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Extension fee per note | Ìý | Ìý | $ 50,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Total extension fee | Ìý | Ìý | 100,000 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Payments to cover taxes | Ìý | Ìý | 40,400 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Amortization expense | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 1,400,000 | Ìý | Ìý | Ìý |
| Convertible Notes | Convertible Notes Payable | Common Stock | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt conversion, converted instrument, shares issued (in shares) | shares | 1,398,602 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Convertible Notes | Revolving Credit Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Line of credit, maximum borrowing capacity | Ìý | Ìý | Ìý | Ìý | $ 5,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Beneficial conversion feature | Ìý | Ìý | $ 1,692,309 | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Credit Facility Agreement | Revolving Credit Facility | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Line of credit, maximum borrowing capacity | Ìý | Ìý | Ìý | Ìý | $ 5,000,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Interest rate of debt (as a percent) | Ìý | Ìý | Ìý | Ìý | 12.00% | Ìý | Ìý | Ìý | Ìý | Ìý |
| One-time upfront facility fee | Ìý | Ìý | Ìý | Ìý | $ 100,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
| One-time extension fee (as a percent) | Ìý | Ìý | Ìý | Ìý | 2.00% | Ìý | Ìý | Ìý | Ìý | Ìý |
| Number of securities called by warrants or rights (in shares) | shares | Ìý | Ìý | Ìý | Ìý | 92,049 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Warrant term | Ìý | Ìý | Ìý | Ìý | 5 years | Ìý | Ìý | Ìý | Ìý | Ìý |
| Exercise price of warrants (in dollars per share) | $ / shares | Ìý | Ìý | Ìý | Ìý | $ 5.85 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Fair value of warrants outstanding | Ìý | Ìý | Ìý | Ìý | $ 255,071 | Ìý | Ìý | Ìý | Ìý | Ìý |
| Unamortized costs | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 34,722 | Ìý | Ìý | $ 182,418 |
| Credit Facility Agreement | Revolving Credit Facility | Cooperman Warrants | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Debt Instrument [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
| Exercise price of warrants (in dollars per share) | $ / shares | Ìý | $ 5.56 | Ìý | Ìý | $ 5.85 | Ìý | Ìý | Ìý | Ìý | Ìý |