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v3.21.2

Leases (Details) - USD ($) $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 30, 2021 | Feb. 28, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Leases [Abstract] |  |  |  |  |  |  |
Operating lease expense |  |  | $ 235 | $ 243 | $ 717 | $ 735 |
Operating cash flows from leases |  |  |  |  | $ 750 | $ 779 |
Weighted average remaining lease term |  |  | 3 years 8 months 12 days |  | 3 years 8 months 12 days |  | 4 years 10 months 24 days
Weighted average discount rate |  |  | 4.40% |  | 4.40% |  | 4.10%
Maturity of Operating Lease Liabilities [Abstract] |  |  |  |  |  |  |
2021 |  |  | $ 232 |  | $ 232 |  | $ 971
2022 |  |  | 886 |  | 886 |  | 879
2023 |  |  | 720 |  | 720 |  | 713
2024 |  |  | 721 |  | 721 |  | 718
2025 |  |  | 426 |  | 426 |  | 464
Thereafter |  |  | 23 |  | 23 |  | 180
Total undiscounted lease payments |  |  | 3,008 |  | 3,008 |  | 3,925
Less imputed interest |  |  | 236 |  | 236 |  | 224
Total lease liabilities |  |  | $ 2,772 |  | $ 2,772 |  | $ 3,701
Minimum [Member] |  |  |  |  |  |  |
Leases [Abstract] |  |  |  |  |  |  |
Remaining lease terms |  |  | 1 year |  | 1 year |  |
Extension period for leases |  |  | 2 years |  | 2 years |  |
Maximum [Member] |  |  |  |  |  |  |
Leases [Abstract] |  |  |  |  |  |  |
Remaining lease terms |  |  | 5 years |  | 5 years |  |
Extension period for leases |  |  | 5 years |  | 5 years |  |
Termination period for leases |  |  |  |  | 1 year |  |
Facility in Ithaca, New York [Member] |  |  |  |  |  |  |
Leases [Abstract] |  |  |  |  |  |  |
Extension period for leases |  |  | 4 years |  | 4 years |  |
Increase (decrease) in right-of-use-asset |  | $ 1,500 |  |  |  |  |
Increase (decrease) in operating lease liability |  | $ 1,500 |  |  |  |  |
Facility in Hamden, Connecticut [Member] |  |  |  |  |  |  |
Leases [Abstract] |  |  |  |  |  |  |
Extension period for leases | 2 years |  |  |  |  |  |
Increase (decrease) in right-of-use-asset | $ (300) |  |  |  |  |  |
Increase (decrease) in operating lease liability | $ (300) |  |  |  |  |  |

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