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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2018
Accounting Policies [Abstract] |
Schedule of Revenue by Geography | The Company derives substantially all of its revenue from sales to customers in the United States. Revenue by geography is based on billing address of the customer. No single country outside the United States accounts for more than 10% of the total revenue during the periods presented. Long-lived assets held outside the United States are immaterial.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
| (in thousands)
Domestic | $ | 12,216 |  |  | $ | 10,530 |  |  | $ | 35,672 |  |  | $ | 30,915 |
International | 1,165 |  |  | 1,153 |  |  | 4,084 |  |  | 3,299 |
| $ | 13,381 |  |  | $ | 11,683 |  |  | $ | 39,756 |  |  | $ | 34,214 |
Schedule of Property and Equipment Useful Lives | All property and equipment is depreciated on a straight-line basis over the estimated useful lives of the assets, which are as follows:
Computer and office equipment | 3 – 5 years
Machinery and equipment | 3 – 5 years
Furniture and fixtures | 7 years
Property and Equipment, net (in thousands):
| September 30, |  | December 31,
| 2018 |  | 2017
Machinery and equipment | $ | 3,670 |  |  | $ | 3,428 |
Construction in progress | 660 |  |  | 879 |
Computer and office equipment | 325 |  |  | 310 |
Leasehold improvements | 443 |  |  | 272 |
Furniture and fixtures | 146 |  |  | 29 |
| 5,244 |  |  | 4,918 |
Less: Accumulated depreciation and amortization | (3,196 | ) |  | (3,022 | )
| $ | 2,048 |  |  | $ | 1,896 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + 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(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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