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Balance Sheet Components | 3 Months Ended
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Mar. 31, 2021
Balance Sheet Components |
Balance Sheet Components | 6. Balance Sheet Components ​ Property and Equipment, net ​ The Company’s property and equipment consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | March 31, | ​ | December 31,
​ | Useful Life | 2021 |  | 2020
​ | ​ | (in thousands)
Machinery and equipment | 3-5 years | $ | 56,298 | ​ | $ | 51,001
Furniture and fixtures | 3 years | ​ | 1,376 | ​ |  | 1,376
Computer equipment | 3 years | ​ | 1,786 | ​ |  | 2,428
Capitalized software held for internal use | 3 years | ​ | 8,059 | ​ | ​ | 7,417
Leasehold improvements | Lesser of useful life or lease term | ​ | 14,854 | ​ |  | 14,810
Construction-in-process | ​ | ​ | 10,407 | ​ |  | 6,370
​ | ​ | ​ | 92,780 | ​ |  | 83,402
Less: Accumulated depreciation and amortization | ​ | ​ | (52,603) | ​ |  | (50,054)
Total Property and Equipment, net | ​ | $ | 40,177 | ​ | $ | 33,348
​ All of the Company’s long-lived assets are located in the United States. ​ During the three months ended March 31, 2021, the increase in net property and equipment was due to purchases of new equipment for the Company’s laboratories located in Texas and California to expand testing capabilities, offset by depreciation expense of $2.5 million recorded in the three months ended March 31, 2021. The Company did not incur an impairment charge during the three months ended March 31, 2021. ​ Accrued Compensation ​ The Company’s accrued compensation consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​
​ | March 31, |  | December 31,
​ | 2021 |  | 2020
​ | (in thousands)
Accrued paid time off | $ | 2,373 | ​ | $ | 2,260
Accrued commissions |  | 10,520 | ​ |  | 12,686
Accrued bonuses |  | 3,709 | ​ |  | 9,635
Other accrued compensation |  | 9,268 | ​ |  | 5,790
Total accrued compensation | $ | 25,870 | ​ | $ | 30,371
​ Other Accrued Liabilities ​ The Company’s other accrued liabilities consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​
​ | March 31, |  | December 31,
​ | 2021 |  | 2020
​ | (in thousands)
Reserves for refunds to insurance carriers | $ | 20,304 | ​ | $ | 17,366
Accrued charges for third-party testing | ​ | 5,180 | ​ | ​ | 5,141
Testing and laboratory materials from suppliers | ​ | 9,247 | ​ | ​ | 2,720
Marketing and corporate affairs | ​ | 4,815 | ​ | ​ | 3,325
Legal, audit and consulting fees |  | 8,601 | ​ |  | 4,189
Accrued shipping charges | ​ | 2,475 | ​ | ​ | 1,604
Sales tax payable | ​ | 1,151 | ​ | ​ | 1,723
Accrued specimen service fees | ​ | 4,701 | ​ | ​ | 2,355
Clinical trials and studies | ​ | 1,940 | ​ | ​ | 2,353
Operating lease liabilities, current portion | ​ | 6,049 | ​ | ​ | 7,300
Fixed asset purchases | ​ | 1,803 | ​ | ​ | 1,691
Other accrued interest | ​ | 2,695 | ​ | ​ | 1,078
Deposits held for sublease | ​ | 320 | ​ | ​ | —
Other accrued expenses |  | 8,015 | ​ | ​ | 9,562
Total other accrued liabilities | $ | 77,296 | ​ | $ | 60,407
​ Reserves for refunds to insurance carriers include overpayments from and amounts to be refunded to insurance carriers, and additional amounts that the Company estimates for potential refund requests during the period. When the Company releases these previously accrued amounts, they are recognized as product revenues in the statements of operations and comprehensive loss. ​ The following table summarizes the reserve balance and activities for refunds to insurance carriers for the three months ended March 31, 2021: ​
​ | ​ | ​ | ​ | ​ | ​
​ | March 31, |  | March 31,
​ | 2021 |  | 2020
​ | (in thousands)
Beginning balance | $ | 17,366 | ​ | ​ | 9,410
Additional reserves |  | 5,594 | ​ |  | 4,684
Refunds to carriers |  | (1,403) | ​ | ​ | (1,468)
Reserves released to revenue | ​ | (1,253) | ​ | ​ | (1,027)
Ending balance | $ | 20,304 | ​ | $ | 11,599
​ | ​ | ​ | ​ | ​ | ​
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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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