Significant Accounting Policies - Narrative (Details) |
3 Months Ended | 9 Months Ended | ||||||
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Jan. 31, 2021
USD ($)
shares
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Jan. 31, 2020
USD ($)
shares
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Jan. 31, 2021
USD ($)
segment
shares
|
Jan. 31, 2020
USD ($)
shares
|
Dec. 31, 2020
USD ($)
|
Aug. 31, 2020
USD ($)
|
Apr. 30, 2020
USD ($)
shares
|
May 01, 2019
USD ($)
|
|
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | $ 3,395,068 | $ 456,211 | $ 3,395,068 | $ 456,211 | Ìý | Ìý | $ 3,556,211 | Ìý |
Cash, uninsured amount | 12,578,734 | Ìý | $ 12,578,734 | Ìý | Ìý | Ìý | 16,242,603 | Ìý |
Percentage of payments from monthly payment plan | Ìý | Ìý | 61.00% | Ìý | Ìý | Ìý | Ìý | Ìý |
Withdrawal from course, percentage of financial aid earned | Ìý | Ìý | 100.00% | Ìý | Ìý | Ìý | Ìý | Ìý |
Long term accounts receivable | 9,986,613 | Ìý | $ 9,986,613 | Ìý | Ìý | Ìý | 6,701,136 | Ìý |
Operating lease right of use assets, net | 11,114,766 | Ìý | 11,114,766 | Ìý | Ìý | Ìý | 6,412,851 | $ 8,000,000 |
Lease liabilities | 12,070,502 | Ìý | 12,070,502 | Ìý | Ìý | Ìý | Ìý | $ 8,000,000 |
Instructional costs and services | 3,915,095 | 2,623,252 | 10,698,056 | 6,948,138 | Ìý | Ìý | Ìý | Ìý |
Marketing and promotional costs | $ 3,644,856 | $ 2,539,755 | $ 10,034,198 | $ 6,755,983 | Ìý | Ìý | Ìý | Ìý |
Outstanding (in shares) | shares | 1,260,213 | 2,776,778 | 1,260,213 | 2,776,778 | Ìý | Ìý | Ìý | Ìý |
Number of reportable segments | segment | Ìý | Ìý | 1 | Ìý | Ìý | Ìý | Ìý | Ìý |
Bad debt expense | $ 670,000 | $ 2,547 | $ 1,702,000 | $ 651,205 | Ìý | Ìý | Ìý | Ìý |
Collateral Pledged, Aspen University Letter of Credit | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | 934,125 | Ìý | 934,125 | Ìý | Ìý | Ìý | 692,293 | Ìý |
Collateral Pledged, Bank Letter of Credit | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | 9,872 | Ìý | 9,872 | Ìý | $ 369,473 | $ 379,345 | 255,708 | Ìý |
Secured Credit Line | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | 250,000 | Ìý | 250,000 | Ìý | Ìý | Ìý | Ìý | Ìý |
Unbilled Educational Services | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | $ 2,201,071 | Ìý | $ 2,201,071 | Ìý | Ìý | Ìý | 2,536,382 | Ìý |
Receipt of Title IV Funds | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted cash | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 71,828 | Ìý |
Software | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Property, plant and equipment, useful life | Ìý | Ìý | 5 years | Ìý | Ìý | Ìý | Ìý | Ìý |
Leasehold improvements | Maximum | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Property, plant and equipment, useful life | Ìý | Ìý | 8 years | Ìý | Ìý | Ìý | Ìý | Ìý |
Restricted Stock Units (RSUs) | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Unvested shares of restricted common stock outstanding (in shares) | shares | 669,337 | 0 | 669,337 | 0 | Ìý | Ìý | 643,175 | Ìý |
Unvested Restricted Stock | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Unvested shares of restricted common stock outstanding (in shares) | shares | 8,224 | 226,922 | 8,224 | 226,922 | Ìý | Ìý | Ìý | Ìý |
Courseware, net | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Finite-lived intangible asset, useful life | Ìý | Ìý | 5 years | Ìý | Ìý | Ìý | Ìý | Ìý |
Warrant | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Outstanding (in shares) | shares | 374,174 | 566,223 | 374,174 | 566,223 | Ìý | Ìý | Ìý | Ìý |
Convertible Debt | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Short-term Debt [Line Items] | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý |
Convertible debt | Ìý | Ìý | Ìý | Ìý | Ìý | Ìý | $ 10,000,000 | Ìý |
Antidilutive securities excluded from computation of earnings per share, amount | shares | Ìý | Ìý | Ìý | 1,398,602 | Ìý | Ìý | Ìý | Ìý |