Business combination consideration transferred notes issued.

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Line of credit facility early termination fee percentage.

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Line of credit facility liquidity covenant in cash.

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Line of credit facility, maximum borrowing capacity upon full repayment of new term loan.

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No definition available.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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

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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.

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No definition available.

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Amount of the required periodic payments including both interest and principal payments.

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Amount of the required periodic payments applied to interest.

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Amount of the required periodic payments applied to principal.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

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

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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.

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Amount of the required periodic payment applied to principal.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Stated interest rate of the subordinated debt.

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Financial Liabilities - Additional Information (Detail) - USD ($)							12 Months Ended
	Jan. 28, 2020	Feb. 14, 2019	Feb. 06, 2019	May 31, 2018	Feb. 14, 2018	Feb. 08, 2017	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Payment of debt instrument, aggregate principal amount							$ 3,610,000	$ 28,214,000
Loss on extinguishment of debt								$ 1,369,000
3VR
Debt Instrument [Line Items]
Date of acquisition completed					Feb. 14, 2018		Feb. 14, 2018
Business combination, issuance of notes					$ 2,000,000
Notes Payable \| 3VR
Debt Instrument [Line Items]
Debt instrument payment, principal and interest		$ 2,100,000
Business combination, issuance of notes					$ 2,000,000
Annual interest rate of notes					3.00%
Notes payable, description							The Company issued subordinated unsecured promissory notes ("notes payable") in the aggregate principal amount of $2.0 million, with an annual interest rate of 3.0%, payable on the one year anniversary of the closing date.
Loan and Security Agreements \| Revolving Loan Facility
Debt Instrument [Line Items]
Loan facility payable date			Feb. 08, 2021
Line of credit facility early termination fee percentage						1.00%
Loan and Security Agreements \| Revolving Loan Facility \| Minimum
Debt Instrument [Line Items]
Line of credit facility liquidity covenant in cash						$ 4,000,000
Loan and Security Agreements \| Revolving Loan Facility \| Prime Rate
Debt Instrument [Line Items]
Percentage of interest rate			0.75%			1.00%
Loan facility payable date							Feb. 08, 2019
Loan and Security Agreements \| East West Bank \| Revolving Loan Facility
Debt Instrument [Line Items]
Borrowing capacity under credit facility			$ 20,000,000			$ 16,000,000
Loan and Security Agreements \| East West Bank \| Revolving Loan Facility \| Subsequent Event
Debt Instrument [Line Items]
Borrowing capacity under credit facility	$ 15,500,000
Borrowing capacity under credit facility upon full repayment of term loan	20,000,000
Loan and Security Agreements \| East West Bank \| Term Loan Facility \| Subsequent Event
Debt Instrument [Line Items]
Borrowing capacity under credit facility	4,500,000
Loan facility, principal payment through first anniversary	$ 250,000
Loan and Security Agreements \| East West Bank \| Term Loan Facility \| Prime Rate \| Subsequent Event
Debt Instrument [Line Items]
Percentage of interest rate	2.25%
Loan and Security Agreements \| Venture Lending & Leasing VII and VIII, Inc. \| Term Loan
Debt Instrument [Line Items]
Payment of debt instrument, aggregate principal amount				$ 10,000,000
Debt instrument payment, principal and interest				5,200,000
Debt instrument, outstanding principal				4,600,000
Debt instrument, accrued and unpaid interest outstanding				600,000
Loss on extinguishment of debt				$ 1,400,000
Loan and Security Agreements \| Venture Lending & Leasing VII and VIII, Inc. \| Term Loan Facility
Debt Instrument [Line Items]
Borrowing capacity under credit facility						$ 10,000,000