Debt - Additional Information (Detail)
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12 Months Ended |
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Nov. 09, 2018
USD ($)
Day
$ / shares
shares
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Sep. 27, 2018
USD ($)
$ / shares
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Mar. 06, 2018
USD ($)
$ / shares
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Dec. 31, 2018
USD ($)
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Oct. 22, 2018
USD ($)
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Aug. 13, 2018
USD ($)
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| Debt Instrument [Line Items] |
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| Borrowings under lines of credit |
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$ 3,696,000
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| Repayments of lines of credit |
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3,696,000
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| Debt issuance costs |
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1,058,000
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| SWK Loan |
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| Debt Instrument [Line Items] |
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| Line of credit facility term |
5 years
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| Borrowings under lines of credit |
$ 12,500,000
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$ 12,500,000
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| Debt instrument, repayment of interest-only on loan period |
2 years
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| Debt instrument, principal repayments beginning term |
2021
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| Repayments of lines of credit |
$ 700,000
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| Debt instrument, maturity term |
2023
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| Debt instrument covenant description |
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(i) maintain unencumbered liquid assets of no less than $1.5 million or (B) the sum of aggregate cash flow from operations less capital expenditures, ii) achieve certain revenue and EBITDA levels during the first two years of the loan, (iii) limit future borrowing, investments and dividends, and (iv) submit monthly and quarterly financial reporting. The Company was in compliance with these debt covenants as of December 31, 2018.
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| Debt issuance costs |
$ 1,000,000
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| Loan origination fee |
200,000
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| Finder's fee |
400,000
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| Legal and other fees |
$ 400,000
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| Interest expense |
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$ 200,000
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| Weighted-average interest rate |
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12.80%
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| SWK Loan | LIBOR |
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| Debt Instrument [Line Items] |
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| Line of credit facility bearing floating interest rate per annum |
10.00%
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| Line of credit facility interest rate description |
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London Interbank Bank Offered Rate (“LIBOR”) plus 10% or another index that approximates LIBOR as close as possible if and when LIBOR no longer exists.
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| Western Alliance Warrant |
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| Debt Instrument [Line Items] |
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| Initial exercise price of warrants | $ / shares |
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$ 2.13
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| SWK Warrants |
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| Debt Instrument [Line Items] |
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| Warrants expiration period |
8 years
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| Warrants fair value assumptions, expected volatility rate |
81.79%
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| Warrants fair value assumptions annual dividend per share | $ / shares |
$ 0.00
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| Warrants fair value assumptions, risk-free interest rate |
3.13%
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| Warrants, estimated fair value |
$ 400,000
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| Warrants issued to purchase shares of common stock | shares |
372,023
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| Warrants expire date |
Nov. 09, 2026
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| Initial exercise price of warrants | $ / shares |
$ 1.34
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| Number of trading days of average closing price of common stock | Day |
10
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| DPG Warrants |
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| Debt Instrument [Line Items] |
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| Warrants expiration period |
8 years
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| Warrants fair value assumptions, expected volatility rate |
81.79%
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| Warrants fair value assumptions annual dividend per share | $ / shares |
$ 0.00
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| Warrants fair value assumptions, risk-free interest rate |
3.13%
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| Warrants, estimated fair value |
$ 300,000
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| Finder's fee |
$ 400,000
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| Warrants issued to purchase shares of common stock | shares |
279,851
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| Warrants expire date |
Nov. 09, 2026
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| Initial exercise price of warrants | $ / shares |
$ 1.34
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| Number of trading days of average closing price of common stock | Day |
10
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| SWK Warrants and DPG Warrants |
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| Debt Instrument [Line Items] |
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| Warrants effective-interest method amortization period |
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5 years
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| Maximum | SWK Loan |
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| Debt Instrument [Line Items] |
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| Debt instrumet covenants unencumbered liquid assets |
$ 1,500,000
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| Business Financing Agreement |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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$ 6,000,000
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| Line of credit facility expiration date |
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Mar. 06, 2020
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| Line of credit facility, interest rate description |
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Amounts outstanding under the Business Financing Agreement bore interest at a per annum floating rate equal to the greater of 4.5% or the “Prime Rate” published in the Money Rates section of the Western Edition of The Wall Street Journal (or such other rate of interest publicly announced from time to time by Western Alliance as its “Prime Rate”), plus 1.5% with respect to advances made under the line of credit, plus an additional 5.0% during any period that an event of default has occurred and is continuing.
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| Line of credit facility, commitment fee amount |
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$ 67,500
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| Line of credit facility, commitment fee description |
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the Company paid the first of two annual commitment fees totaling $67,500, being 0.25% of the aggregate $6.0 million commitment for the Domestic Revolver and 1.75% of the aggregate $3.0 million commitment for the EXIM Revolver. The commitment fees and the legal costs associated with acquiring the credit facilities were capitalized and were amortized on a straight-line basis as interest expense over the term of the Business Financing Agreement
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| Business Financing Agreement | Western Alliance |
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| Debt Instrument [Line Items] |
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| Line of credit facility minimum unrestricted cash covenant |
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$ 300,000
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| Interest expense including debt issuance costs |
100,000
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| Repayments of lines of credit |
$ 900,000
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| Business Financing Agreement | Western Alliance Warrant |
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| Debt Instrument [Line Items] |
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| Warrants expiration period |
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10 years
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| Warrants fair value assumptions, expected volatility rate |
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91.49%
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| Warrants fair value assumptions annual dividend per share | $ / shares |
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$ 0.00
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| Warrants fair value assumptions, risk-free interest rate |
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2.88%
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| Warrants, estimated fair value |
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$ 100,000
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| Business Financing Agreement | Domestic Revolving Credit Facility |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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$ 6,000,000
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| Maximum borrowing base percentage of eligible accounts receivable |
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75.00%
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| Line of credit facility commitment fee percentage |
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0.25%
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| Line of credit facility, commitment fee amount |
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$ 6,000,000
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| Business Financing Agreement | Export Revolving Credit Facility |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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$ 3,000,000
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| Maximum borrowing base percentage of eligible accounts receivable |
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85.00%
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| Line of credit facility commitment fee percentage |
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1.75%
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| Line of credit facility, commitment fee amount |
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$ 3,000,000
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| Business Financing Agreement | Line of Credit |
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| Debt Instrument [Line Items] |
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| Variable interest Rate with respect to advances made |
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1.50%
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| Line of credit facility interest rate during period in event of default |
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5.00%
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| Business Financing Agreement | Line of Credit | Minimum |
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| Debt Instrument [Line Items] |
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| Line of credit facility bearing floating interest rate per annum |
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4.50%
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| Business Financing Modification Agreement | Western Alliance |
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| Debt Instrument [Line Items] |
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| Line of credit facility, maximum borrowing capacity |
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$ 2,500,000
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| Line of credit facility expiration date |
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Mar. 06, 2019
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| Line of credit facility default covenant advance |
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$ 1,500,000
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| Line of credit, outstanding borrowings |
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$ 1,500,000
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