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Cash and cash equivalents us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) us-gaap_NumberOfOperatingSegments Number of Operating Segments us-gaap_NumberOfReportableSegments Number of Reportable Segments Other assets us-gaap_OtherAssetsMiscellaneous Segment Reporting [Text Block] Income Tax Contingency [Table] Award Type [Axis] Net income Net income Net income Adjustments to reconcile net income to net cash provided by operating activities: us-gaap_Liabilities Total liabilities Amortization us-gaap_AllocatedShareBasedCompensationExpense Share-Based Payment Arrangement, Expense us-gaap_LiabilitiesAndStockholdersEquity Total liabilities and shareholders' equity Title and Position [Axis] Segment Reporting [Table] us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets Prepaid expenses and other assets Share-based compensation expense us-gaap_ShareBasedCompensation Selling, general and administrative Income Tax Disclosure [Text Block] Share-Based Payment Arrangement [Text Block] Restricted Stock [Member] Changes in operating assets and liabilities: us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net increase (decrease) in cash Supplemental Balance Sheet Disclosures [Text Block] New Accounting Pronouncements, Policy [Policy Text Block] us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Beginning of period End of period Share-Based Payment Arrangement, Tranche One [Member] Statement [Table] Credit Facility [Axis] Credit Facility [Domain] Revolving Credit Facility [Member] BMO Bank N.A. [Member] Represents the BMO Bank N.A.. 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Finite-life intangible assets, net Document Fiscal Period Focus Document Fiscal Year Focus Amendment Flag Common Stock [Member] Document Period End Date Granted (in shares) Legal Entity [Axis] Accrued compensation Warranty reserve Entity File Number us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term (Year) Entity Tax Identification Number Other accrued liabilities Total Supplemental Disclosures of Noncash Investing and Financing Activities Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table] Entity [Domain] Entity Central Index Key Entity Registrant Name Entity Current Reporting Status Entity Incorporation, State or Country Code Expected term (years) (Year) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year) Current Fiscal Year End Date Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Contract with Customer, Sales Channel [Domain] Research and development Entity Filer Category Entity Shell Company Contract with Customer, Sales Channel [Axis] Entity Emerging Growth Company Entity Small Business us-gaap_ContractWithCustomerAssetReclassifiedToReceivable Reclassification of contract assets to accounts receivable us-gaap_OperatingIncomeLoss Operating income Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] us-gaap_ContractWithCustomerAssetNet Contract assets, beginning balance Contract assets, ending balance Entity Address, State or Province Statement of Stockholders' Equity [Abstract] Inventory, Current [Table] Entity Address, City or Town Retained earnings Entity Address, Address Line One Contract Assets Contract assets Statement of Cash Flows [Abstract] City Area Code us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation Taxes paid on net share settlement of stock awards Local Phone Number Entity Address, Postal Zip Code Revenue from Contract with Customer [Text Block] Shareholders' Equity Title of 12(b) Security Accrual for products sold Equity Components [Axis] Security Exchange Name Trading Symbol Class of Stock [Axis] Issuance of common stock upon exercise of options Product Warranty Disclosure [Text Block] Equity Component [Domain] us-gaap_ProductWarrantyAccrualPayments Expenditures and costs incurred for warranty claims Variable Rate [Domain] Equity [Text Block] Entity Common Stock, Shares Outstanding Additional Paid-in Capital [Member] us-gaap_ProductWarrantyAccrual Warranty reserve, beginning Warranty reserve, ending Retained Earnings [Member] Earnings Per Share [Text Block] Chief Executive Officer [Member] Other accrued expenses Property and equipment, net Weighted-average common shares outstanding: Property and equipment and intangible asset acquisitions in accounts payable Not Designated as Hedging Instrument [Member] Income tax receivable, net Scenario [Axis] Scenario [Domain] Forecast [Member] Deferred income taxes us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Capitalized software costs Cost of revenues Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share (in dollars per share) Estimated inventory to be returned Amount before valuation and LIFO reserves of estimated inventory to be returned. 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Other Commitments [Table] Finished goods elmd_SharebasedCompensationExpenseAcceleratedAmountRecognizedOverTime Share-Based Compensation Expense, Accelerated Amount, Recognized Over Time The accelerated amount of share based compensation resulting from the partially vested shares that will be recognized over time. Canceled or Forfeited (in dollars per share) elmd_DebtInstrumentTotalFundedDebtRatio Debt Instrument, Total Funded Debt Ratio The total funded debt ration allowed under the credit agreement. us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in shares) elmd_DebtInstrumentFixedChargeCoverageRatio Debt Instrument, Fixed Charge Coverage Ratio The fixed charged coverage ration for the debt instrument. Inventories Total elmd_ReturnOnEquityThresholdPercentage Return on Equity, Threshold, Percentage Pertains to the return on equity. Product Warranty Liability [Table] Contract with Customer, Contract Asset and Receivable [Table Text Block] Tabular disclosure of receivable and contract asset from contract with customer. Third-Party Payer, Medicare Supplemental [Member] Major payor source of revenue for health care organizations. Third-Party Payer, Medicare [Member] Major payor source of revenue for health care organizations. Third-Party, Other [Member] Major payor source of revenue for health care organizations. us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Net income before income taxes Third-Party Payer, Medicaid [Member] Major payor source of revenue for health care organizations. 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