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Balance Sheets Components | 6 Months Ended
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Jun. 30, 2021
Balance Sheet Related Disclosures [Abstract] |
Balance Sheets Components | Note 4. Balance Sheet Components Accounts Receivable, net Accounts receivable, net consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
Accounts receivable, gross |  | $ | 25,320 |  |  | $ | 23,970 |
Allowance for credit losses |  |  | (50 | ) |  |  | (50 | )
Accounts receivable, net |  | $ | 25,270 |  |  | $ | 23,920 |
Inventories Inventories consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
Raw materials |  | $ | 1,619 |  |  | $ | 435 |
Work in progress |  |  | 13,567 |  |  |  | 10,184 |
Finished goods |  |  | 3,308 |  |  |  | 1,731 |
Total inventories |  | $ | 18,494 |  |  | $ | 12,350 |
Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
Advance to suppliers |  | $ | 339 |  |  | $ | 853 |
Prepaid expenses |  |  | 1,700 |  |  |  | 1,074 |
Other current assets |  |  | 805 |  |  |  | 722 |
Total prepaid expenses and other current assets |  | $ | 2,844 |  |  | $ | 2,649 |
Property and Equipment, Net Property and equipment, net consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
Lab and manufacturing equipment |  | $ | 32,024 |  |  | $ | 21,958 |
Computer Equipment |  |  | 1,494 |  |  |  | 1,121 |
Furniture and fixtures |  |  | 292 |  |  |  | 237 |
Construction in progress |  |  | 638 |  |  |  | 638 |
Leasehold improvements |  |  | 4,783 |  |  |  | 4,134 |
|  |  | 39,231 |  |  |  | 28,088 |
Accumulated depreciation |  |  | (18,459 | ) |  |  | (16,380 | )
Total property and equipment, net |  | $ | 20,772 |  |  | $ | 11,708 |
Depreciation expense related to property and equipment was $1.4 million, $2.5 million, $0.8 million, and $1.7 million for the three and six months ended June 30, 2021 and 2020, respectively. Intangible Assets, Net Intangible assets, net consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
|  | Gross Assets |  |  | Accumulated Amortization |  |  | Net Assets |  |  | Gross Assets |  |  | Accumulated Amortization |  |  | Net Assets |
|  | (in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Internal use software |  | $ | 9,434 |  |  | $ | (8,504 | ) |  | $ | 930 |  |  | $ | 9,377 |  |  | $ | (8,312 | ) |  | $ | 1,065 |
Purchased intangibles |  |  | 7,067 |  |  |  | (5,522 | ) |  |  | 1,545 |  |  |  | 5,663 |  |  |  | (4,659 | ) |  |  | 1,004 |
Intangible assets |  | $ | 16,501 |  |  | $ | (14,026 | ) |  | $ | 2,475 |  |  | $ | 15,040 |  |  | $ | (12,971 | ) |  | $ | 2,069 |
Amortization expense for intangible assets was $0.5 million, $1.0 million, $0.9 million, and $2.0 million for the three and six months ended June 30, 2021 and 2020, respectively. In the three and six months ended June 30, 2020, the Company recorded impairment charges of $0.2 million related to cost of software that was in process of development for internal use. As of June 30, 2021, the Company had $0.8 million of intangibles that were still in development stage and were not being amortized. The estimated aggregate future amortization expense for intangible assets in development stage and subject to amortization as of June 30, 2021 is summarized as below:
|  | (in thousands) |
2021 (remainder) |  | $ | 759 |
2022 |  |  | 816 |
2023 |  |  | 479 |
2024 |  |  | 196 |
2025 and beyond |  |  | 224 |
|  | $ | 2,475 |
Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following:
|  | As of |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | (in thousands) |
Accrued payroll and related benefits |  | $ | 5,142 |  |  | $ | 5,362 |
Price adjustment and other revenue reserves |  |  | 3,850 |  |  |  | 3,063 |
Short term lease liability |  |  | 1,086 |  |  |  | 1,264 |
Other accrued expenses |  |  | 3,729 |  |  |  | 3,274 |
Total accrued expenses and other current liabilities |  | $ | 13,807 |  |  | $ | 12,963 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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