Debt instrument covenant current fixed charge minimum percentage.

No definition available.

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Period Type:	instant

- Definition

Line of credit facility to make additional investments.

+ References

No definition available.

+ Details

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Namespace Prefix:	hear_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility to make investments.

+ References

No definition available.

+ Details

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Namespace Prefix:	hear_
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Balance Type:	credit
Period Type:	instant

- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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Revolving Credit Facility and Long-Term Debt - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2018	Dec. 31, 2021	May 31, 2019
Debt Instrument [Line Items]
Interest expense, debt	$ 100,000	$ 100,000
Amortization of debt financing costs	47,000	$ 47,000
Revolving Credit Facility, Maturing March 2024
Debt Instrument [Line Items]
Expiration date			Mar. 05, 2024
Maximum borrowing capacity			$ 80,000,000
Line of credit facility, capacity available for trade purchases			6,800,000
Line of credit facility, capacity available for specific purpose other than for trade purchases			40,000,000
Outstanding borrowings	$ 0
Debt instrument, covenant, current fixed charge ratio required, minimum	1.00%
Remaining borrowing capacity	$ 48,700,000
Revolving Credit Facility, Maturing March 2024 \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	4.00%
Revolving Credit Facility, Maturing March 2024 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%
Revolving Credit Facility, Maturing March 2024 \| Minimum
Debt Instrument [Line Items]
Unused commitment fee, percent	0.25%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Revolving Credit Facility, Maturing March 2024 \| Minimum \| Adjustable Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit Facility, Maturing March 2024 \| Maximum
Debt Instrument [Line Items]
Unused commitment fee, percent	0.50%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit Facility, Maturing March 2024 \| Maximum \| Adjustable Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Revolving Credit Facility, Maturing March 2024 \| UK Borrower
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 12,000,000
Revolving Credit Facility, Maturing March 2024 \| TB Germany GmbH \| Maximum \| ROCCAT
Debt Instrument [Line Items]
Line of credit to make investments					$ 4,000,000
Line of credit to make additional investments					$ 4,000,000
Revolving credit facilities
Debt Instrument [Line Items]
Long Term Debt	$ 0			$ 0