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Long Term Debt - SVB Loan Agreement - Additional Information (Detail) - SVB Loan Agreement [Member] - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 31, 2018 | Oct. 31, 2016 | Mar. 31, 2019 | Oct. 19, 2018 | Jun. 30, 2017
Schedule Of Long Term Debt [Line Items] |  |  |  |  |
Debt instrument variable percentage |  | 5.50% |  |  |
Debt instrument description |  |  | Borrowings under the SVB Loan Agreement bore interest at a variable rate equal to 5.5% plus the greater of (i) 3.5% or (ii) The Wall Street Journal prime rate. |  |
Repayment of outstanding loan principal | $ 4,333 |  |  |  |
Repayments portion of total borrowing | 270 |  |  |  |
Debt instrument prepayment premium | 87 |  |  |  |
Debt instrument accrued interest | 23 |  |  |  |
Gains losses on extinguishment of debt | 229 |  |  |  |
Reacquisition price of borrowing | 4,713 |  |  |  |
Debt instrument carrying value | $ 4,484 |  |  |  |
Debt instrument stated percentage |  |  |  | 10.75% |
Minimum [Member] |  |  |  |  |
Schedule Of Long Term Debt [Line Items] |  |  |  |  |
Debt instrument variable percentage |  | 3.50% |  |  |
Term Loan A [Member] |  |  |  |  |
Schedule Of Long Term Debt [Line Items] |  |  |  |  |
Maximum term loan borrowing capacity |  |  |  |  | $ 6,000

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114001942&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
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- Definition Reacquisition price of borrowing. + References No definition available. + Details
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- Definition Schedule Of Long Term Debt [Line Items] + References No definition available. + Details
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