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Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.

No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount owed to the reporting entity by counterparties in securitized loan transactions.

No definition available.

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Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Amount of allowance for credit loss on accounts receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Amount of assets pledged to secure a debt instrument.

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Increase for accrued, but unpaid interest on the debt instrument for the period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
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-Topic 235
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The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate.

No definition available.

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Data Type:	dtr-types:percentItemType
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Namespace Prefix:
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Name:	us-gaap_ShortTermDebtTypeAxis=bdmd_ChinaCiticBankSuzhouBranchMember
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Data Type:	na
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Name:	us-gaap_VariableRateAxis=bdmd_InterestRateOf3.00Member
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Data Type:	na
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Name:	us-gaap_VariableRateAxis=bdmd_InterestRateOf3.95Member
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Data Type:	na
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Name:	us-gaap_VariableRateAxis=bdmd_InterestRateOf4.15Member
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Name:	srt_RangeAxis=srt_MinimumMember
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