3.21.4 html 142 287 1 false 32 0 false 4 false false R1.htm 000 - Document - Document And Entity Information Sheet http://www.edcpub.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 001 - Statement - CONDENSED BALANCE SHEETS Sheet http://www.edcpub.com/role/ConsolidatedBalanceSheet CONDENSED BALANCE SHEETS Statements 2 false false R3.htm 002 - Statement - CONDENSED BALANCE SHEETS (Parentheticals) Sheet http://www.edcpub.com/role/ConsolidatedBalanceSheet_Parentheticals CONDENSED BALANCE SHEETS (Parentheticals) Statements 3 false false R4.htm 003 - Statement - CONDENSED STATEMENTS OF EARNINGS Sheet http://www.edcpub.com/role/ConsolidatedIncomeStatement CONDENSED STATEMENTS OF EARNINGS Statements 4 false false R5.htm 004 - Statement - CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY Sheet http://www.edcpub.com/role/ShareholdersEquityType2or3 CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY Statements 5 false false R6.htm 005 - Statement - CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Parentheticals) Sheet http://www.edcpub.com/role/ShareholdersEquityType2or3_Parentheticals CONDENSED STATEMENTS OF SHAREHOLDERS' EQUITY (Parentheticals) Statements 6 false false R7.htm 006 - Statement - CONDENSED STATEMENTS OF CASH FLOWS Sheet http://www.edcpub.com/role/ConsolidatedCashFlow CONDENSED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 007 - Disclosure - BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://www.edcpub.com/role/BASISOFPRESENTATIONANDSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Notes 8 false false R9.htm 008 - Disclosure - INVENTORIES Sheet http://www.edcpub.com/role/INVENTORIES INVENTORIES Notes 9 false false R10.htm 009 - Disclosure - LEASES Sheet http://www.edcpub.com/role/LEASES LEASES Notes 10 false false R11.htm 010 - Disclosure - DEBT Sheet http://www.edcpub.com/role/DEBT DEBT Notes 11 false false R12.htm 011 - Disclosure - EARNINGS PER SHARE Sheet http://www.edcpub.com/role/EARNINGSPERSHARE EARNINGS PER SHARE Notes 12 false false R13.htm 012 - Disclosure - STOCK-BASED COMPENSATION Sheet http://www.edcpub.com/role/STOCKBASEDCOMPENSATION STOCK-BASED COMPENSATION Notes 13 false false R14.htm 013 - Disclosure - SHIPPING AND HANDLING COSTS Sheet http://www.edcpub.com/role/SHIPPINGANDHANDLINGCOSTS SHIPPING AND HANDLING COSTS Notes 14 false false R15.htm 014 - Disclosure - BUSINESS SEGMENTS Sheet http://www.edcpub.com/role/BUSINESSSEGMENTS BUSINESS SEGMENTS Notes 15 false false R16.htm 015 - Disclosure - FAIR VALUE MEASUREMENTS Sheet http://www.edcpub.com/role/FAIRVALUEMEASUREMENTS FAIR VALUE MEASUREMENTS Notes 16 false false R17.htm 016 - Disclosure - DEFERRED REVENUES Sheet http://www.edcpub.com/role/DEFERREDREVENUES DEFERRED REVENUES Notes 17 false false R18.htm 017 - Disclosure - SUBSEQUENT EVENT Sheet http://www.edcpub.com/role/SUBSEQUENTEVENT SUBSEQUENT EVENT Notes 18 false false R19.htm 018 - Disclosure - Accounting Policies, by Policy (Policies) Sheet http://www.edcpub.com/role/AccountingPoliciesByPolicy Accounting Policies, by Policy (Policies) Policies 19 false false R20.htm 019 - Disclosure - INVENTORIES (Tables) Sheet http://www.edcpub.com/role/INVENTORIESTables INVENTORIES (Tables) Tables http://www.edcpub.com/role/INVENTORIES 20 false false R21.htm 020 - Disclosure - LEASES (Tables) Sheet http://www.edcpub.com/role/LEASESTables LEASES (Tables) Tables http://www.edcpub.com/role/LEASES 21 false false R22.htm 021 - Disclosure - DEBT (Tables) Sheet http://www.edcpub.com/role/DEBTTables DEBT (Tables) Tables http://www.edcpub.com/role/DEBT 22 false false R23.htm 022 - Disclosure - EARNINGS PER SHARE (Tables) Sheet http://www.edcpub.com/role/EARNINGSPERSHARETables EARNINGS PER SHARE (Tables) Tables http://www.edcpub.com/role/EARNINGSPERSHARE 23 false false R24.htm 023 - Disclosure - STOCK-BASED COMPENSATION (Tables) Sheet http://www.edcpub.com/role/STOCKBASEDCOMPENSATIONTables STOCK-BASED COMPENSATION (Tables) Tables http://www.edcpub.com/role/STOCKBASEDCOMPENSATION 24 false false R25.htm 024 - Disclosure - BUSINESS SEGMENTS (Tables) Sheet http://www.edcpub.com/role/BUSINESSSEGMENTSTables BUSINESS SEGMENTS (Tables) Tables http://www.edcpub.com/role/BUSINESSSEGMENTS 25 false false R26.htm 026 - Disclosure - INVENTORIES (Details) Sheet http://www.edcpub.com/role/INVENTORIESDetails INVENTORIES (Details) Details http://www.edcpub.com/role/INVENTORIESTables 26 false false R27.htm 027 - Disclosure - INVENTORIES (Details) - Schedule of Inventory Sheet http://www.edcpub.com/role/ScheduleofInventoryTable INVENTORIES (Details) - Schedule of Inventory Details http://www.edcpub.com/role/INVENTORIESTables 27 false false R28.htm 028 - Disclosure - LEASES (Details) Sheet http://www.edcpub.com/role/LEASESDetails LEASES (Details) Details http://www.edcpub.com/role/LEASESTables 28 false false R29.htm 029 - Disclosure - LEASES (Details) - Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity Sheet http://www.edcpub.com/role/LessorOperatingLeasePaymenttobeReceivedFiscalYearMaturityTable LEASES (Details) - Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity Details http://www.edcpub.com/role/LEASESTables 29 false false R30.htm 030 - Disclosure - DEBT (Details) Sheet http://www.edcpub.com/role/DEBTDetails DEBT (Details) Details http://www.edcpub.com/role/DEBTTables 30 false false R31.htm 031 - Disclosure - DEBT (Details) - Schedule of Debt Sheet http://www.edcpub.com/role/ScheduleofDebtTable DEBT (Details) - Schedule of Debt Details http://www.edcpub.com/role/DEBTTables 31 false false R32.htm 032 - Disclosure - DEBT (Details) - Schedule of Long-term Debt Instruments Sheet http://www.edcpub.com/role/ScheduleofLongtermDebtInstrumentsTable DEBT (Details) - Schedule of Long-term Debt Instruments Details http://www.edcpub.com/role/DEBTTables 32 false false R33.htm 033 - Disclosure - DEBT (Details) - Schedule of Maturities of Long-term Debt Sheet http://www.edcpub.com/role/ScheduleofMaturitiesofLongtermDebtTable DEBT (Details) - Schedule of Maturities of Long-term Debt Details http://www.edcpub.com/role/DEBTTables 33 false false R34.htm 034 - Disclosure - EARNINGS PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted Sheet http://www.edcpub.com/role/ScheduleofEarningsPerShareBasicandDilutedTable EARNINGS PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted Details http://www.edcpub.com/role/EARNINGSPERSHARETables 34 false false R35.htm 035 - Disclosure - STOCK-BASED COMPENSATION (Details) Sheet http://www.edcpub.com/role/STOCKBASEDCOMPENSATIONDetails STOCK-BASED COMPENSATION (Details) Details http://www.edcpub.com/role/STOCKBASEDCOMPENSATIONTables 35 false false R36.htm 036 - Disclosure - STOCK-BASED COMPENSATION (Details) - Share-based Payment Arrangement, Cost by Plan Sheet http://www.edcpub.com/role/SharebasedPaymentArrangementCostbyPlanTable STOCK-BASED COMPENSATION (Details) - Share-based Payment Arrangement, Cost by Plan Details http://www.edcpub.com/role/STOCKBASEDCOMPENSATIONTables 36 false false R37.htm 037 - Disclosure - STOCK-BASED COMPENSATION (Details) - Nonvested Restricted Stock Shares Activity Sheet http://www.edcpub.com/role/NonvestedRestrictedStockSharesActivityTable STOCK-BASED COMPENSATION (Details) - Nonvested Restricted Stock Shares Activity Details http://www.edcpub.com/role/STOCKBASEDCOMPENSATIONTables 37 false false R38.htm 038 - Disclosure - SHIPPING AND HANDLING COSTS (Details) Sheet http://www.edcpub.com/role/SHIPPINGANDHANDLINGCOSTSDetails SHIPPING AND HANDLING COSTS (Details) Details http://www.edcpub.com/role/SHIPPINGANDHANDLINGCOSTS 38 false false R39.htm 039 - Disclosure - BUSINESS SEGMENTS (Details) Sheet http://www.edcpub.com/role/BUSINESSSEGMENTSDetails BUSINESS SEGMENTS (Details) Details http://www.edcpub.com/role/BUSINESSSEGMENTSTables 39 false false R40.htm 040 - Disclosure - BUSINESS SEGMENTS (Details) - Schedule of Information by Industry Segment Sheet http://www.edcpub.com/role/ScheduleofInformationbyIndustrySegmentTable BUSINESS SEGMENTS (Details) - Schedule of Information by Industry Segment Details http://www.edcpub.com/role/BUSINESSSEGMENTSTables 40 false false R41.htm 041 - Disclosure - FAIR VALUE MEASUREMENTS (Details) Sheet http://www.edcpub.com/role/FAIRVALUEMEASUREMENTSDetails FAIR VALUE MEASUREMENTS (Details) Details http://www.edcpub.com/role/FAIRVALUEMEASUREMENTS 41 false false R42.htm 042 - Disclosure - DEFERRED REVENUES (Details) Sheet http://www.edcpub.com/role/DEFERREDREVENUESDetails DEFERRED REVENUES (Details) Details http://www.edcpub.com/role/DEFERREDREVENUES 42 false false R43.htm 043 - Disclosure - SUBSEQUENT EVENT (Details) Sheet http://www.edcpub.com/role/SUBSEQUENTEVENTDetails SUBSEQUENT EVENT (Details) Details http://www.edcpub.com/role/SUBSEQUENTEVENT 43 false false All Reports Book All Reports edc20211130_10q.htm educ-20211130.xsd educ-20211130_cal.xml educ-20211130_def.xml educ-20211130_lab.xml educ-20211130_pre.xml ex_321235.htm ex_321236.htm ex_321237.htm http://fasb.org/us-gaap/2021-01-31 http://fasb.org/srt/2021-01-31 http://xbrl.sec.gov/dei/2021 true true