Description of Business and Basis of Presentation - Additional Information (Detail) - USD ($) |
Apr. 14, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
|---|---|---|---|---|---|
| Basis Of Presentation [Line Items] | |||||
| Cash and cash equivalents, including restricted cash | $ 1,823,000 | $ 6,101,000 | $ 3,268,000 | $ 8,356,000 | |
| Accounts receivable, net | 4,749,000 | $ 8,760,000 | |||
| SWK Loan | |||||
| Basis Of Presentation [Line Items] | |||||
| Working capital | $ (3,700,000) | ||||
| Pacific Mercantile Bank | Paycheck Protection Program | Subsequent Event | |||||
| Basis Of Presentation [Line Items] | |||||
| Loan granted amount from bank | $ 2,980,000.00 | ||||
| Note issued date | Apr. 13, 2020 | ||||
| Note maturity date | Apr. 13, 2022 | ||||
| Note interest rate per annum | 1.00% | ||||
| Note payable commencing date | Nov. 01, 2020 | ||||
| Note prepayment penalties | $ 0 |
| X | ||||||||||
- Definition Basis of presentation. No definition available.
|
| X | ||||||||||
- Definition Debt instrument note prepayment penalties. No definition available.
|
| X | ||||||||||
- Definition A financial calculation subtracting current liabilities from current assets. No definition available.
|
| X | ||||||||||
- Definition Amount, after 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
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Date the debt instrument was issued, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Start date of debt instrument redemption period, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the operating cycle if longer, excluding current portion. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|