XML 57 R66.htm IDEA: XBRL DOCUMENT
v3.20.1

Note 15 - Subsequent Events (Details Textual) - USD ($) $ in Millions |  | 1 Months Ended
--- | --- | ---
May 05, 2020 | May 31, 2020
Subsequent Event [Member] |  |
Proceeds from Paycheck Protection Program Under CARES Act | $ 2.8 | $ 2.8

X
- Definition The cash inflow received from loan funding under the Paycheck Protection Program which was established under the Coronavirus Aid, Relief and Economic Security (CARES) Act in March 2020. + References No definition available. + Details
Name: | rfil_ProceedsFromPaycheckProtectionProgramUnderCaresAct
Namespace Prefix: | rfil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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