XML 81 R70.htm IDEA: XBRL DOCUMENT
v3.20.2

Subsequent Event (Details) - Subsequent Event [Member] | Aug. 07, 2020 USD ($)
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Subsequent Event [Line Items] |
Payment Demand Amount | $ 5,081,000
Payment Demand Amount, Payment | $ 0
Payment Demand Amount, Term | 5 days

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- Definition Payment Demand Amount + References No definition available. + Details
Name: | rail_PaymentDemandAmount
Namespace Prefix: | rail_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Payment Demand Amount, Payment + References No definition available. + Details
Name: | rail_PaymentDemandAmountPayment
Namespace Prefix: | rail_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Payment Demand Amount, Term + References No definition available. + Details
Name: | rail_PaymentDemandAmountTerm
Namespace Prefix: | rail_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |