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Selected Balance Sheet Information | 6 Months Ended
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Jun. 30, 2022
Selected Balance Sheet Information [Abstract] |
Selected balance sheet information |
3. | Selected balance sheet information
Inventory consists of the following at: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31,
(in thousands) | ​ | 2022 | ​ | 2021
Raw material | ​ | $ | 2,455 | ​ | $ | 1,593
Work-in-process | ​ |  | 753 | ​ |  | 482
Finished goods | ​ |  | 2,626 | ​ |  | 1,805
​ | ​ | $ | 5,834 | ​ | $ | 3,880
​ Property and equipment, net consists of the following at: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31,
(in thousands) | ​ | 2022 | ​ | 2021
Office furniture and equipment | ​ | $ | 350 | ​ | $ | 271
Lab equipment | ​ |  | 2,614 | ​ |  | 1,565
Computer equipment and software | ​ |  | 576 | ​ |  | 556
Leasehold improvements | ​ |  | 95 | ​ |  | 88
Capital equipment in process | ​ |  | — | ​ |  | 813
​ | ​ |  | 3,635 | ​ |  | 3,293
Less: Accumulated depreciation and amortization | ​ |  | 2,025 | ​ |  | 1,868
​ | ​ | $ | 1,610 | ​ | $ | 1,425
​ Depreciation expense was $95,000 and $37,000 for the three months ended June 30, 2022 and 2021, respectively, and $157,000 and $70,000 for the six months ended June 30, 2022 and 2021, respectively. Accrued expenses consist of the following at: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | June 30, |  | December 31,
(in thousands) | ​ | 2022 | ​ | 2021
Clinical trial and other professional fees | ​ | $ | 1,788 | ​ | $ | 1,607
Bonuses | ​ |  | 1,610 | ​ |  | 2,028
Paid time off | ​ |  | 878 | ​ |  | 699
Customer rebates | ​ | ​ | 272 | ​ | ​ | 380
Operating lease liability, current portion | ​ | ​ | 212 | ​ | ​ | —
Other | ​ |  | 541 | ​ |  | 684
​ | ​ | $ | 5,301 | ​ | $ | 5,398
​

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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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