XML 68 R51.htm IDEA: XBRL DOCUMENT
v3.20.2

Note 12 - Subsequent Events (Details Textual) - Subsequent Event [Member] |  | 1 Months Ended |
--- | --- | --- | ---
Apr. 10, 2020 USD ($) | Jun. 29, 2020 T $ / item | Jun. 25, 2020 shares
Proceeds from Paycheck Protection Program Under CARES Act | $ | $ 1,690,385 |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares) | shares |  |  | 1,062,067
Stock Repurchase Program, Percentage of Total Outstanding Shares of Common Stock |  |  | 15.00%
Commodity Price Risk Derivative for August 2020 Settlement [Member] |  |  |
Derivative, Nonmonetary Notional Amount, Mass (US Ton) | T |  | 4,000 |
Derivative, Average Forward Price (in USD per Per Share) | $ / item |  | 514.5 |
Commodity Price Risk Derivative for September 2020 Settlement [Member] |  |  |
Derivative, Nonmonetary Notional Amount, Mass (US Ton) | T |  | 2,000 |
Derivative, Average Forward Price (in USD per Per Share) | $ / item |  | 522 |

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: | frd_ProceedsFromPaycheckProtectionProgramUnderCARESAct
Namespace Prefix: | frd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The percentage of the company's total outstanding shares of commons stock which have been authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | frd_StockRepurchaseProgramPercentageOfTotalOutstandingSharesOfCommonStock
Namespace Prefix: | frd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The average forward price on the group of price risk forward or futures contracts, such as gas futures contracts. + References No definition available. + Details
Name: | us-gaap_DerivativeAverageForwardPrice
Namespace Prefix: | us-gaap_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal mass used to calculate payments on a derivative instrument. + References No definition available. + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmountMass
Namespace Prefix: | us-gaap_
Data Type: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=frd_CommodityPriceRiskDerivativeForAugust2020SettlementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=frd_CommodityPriceRiskDerivativeForSeptember2020SettlementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |