Debt (Details) |
Sep. 30, 2018
USD ($)
agreement
|
Dec. 31, 2017
USD ($)
|
|---|---|---|
| Lines of Credit | ||
| Aggregate borrowing base | $ 25,000,000.0 | |
| Amount outstanding | 0 | $ 0 |
| Security deposit | $ 15,000,000 | |
| Government Grants | ||
| Number of conditional loan agreements (in agreements) | agreement | 2 | |
| Amount of loan | $ 3,500,000 | 3,500,000 |
| Prince George's County, Maryland | ||
| Government Grants | ||
| Loan interest rate | 3.00% | |
| Department of Commerce | ||
| Government Grants | ||
| Loan interest rate | 3.00% | |
| Standby letters of credit | ||
| Lines of Credit | ||
| Aggregate borrowing base | $ 10,000,000.0 | |
| Revolving working capital facility | Short Course Segment | ||
| Lines of Credit | ||
| Aggregate borrowing base | $ 1,900,000.0 |
| X | ||||||||||
- Definition Amount of deferred government grant obligations due beyond one year or the operating cycle, whichever is longer. No definition available.
|
| X | ||||||||||
- Definition N/A. No definition available.
|
| X | ||||||||||
- Definition Represents the number of government grants. No definition available.
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|