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Commitments (Details Narrative) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2018 USD ($) ft² | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Leases expire date description |  | The Company leases office and production facilities and equipment under agreements that expire at various dates through 2026. |
Short-term restricted cash |  | $ 50 |
Operating leases |  | 528 | 510
Operating lease liabilities |  | 3,500 |
Operating right-of use assets, net of tenant improvement allowances |  | 2,300 |
Depreciation expenses |  | 2,382 | 2,058
Carlsbad Lease [Member] |  |  |
Area of land | ft² | 16,000 |  |
Lease terms | The term of the Carlsbad Lease is from December 2018 through April 2026. |  |
Lease extension term | 5 years |  |
Option to renew the lease | The Company has a one-time option to renew the lease for an additional five-year extension. |  |
Base rent abatement, description | Base rent is abated by 50% for months two through nine of the term. Base rent escalates annually beginning in December 2019 by approximately 3.5% per year. |  |
Letter of credit to the lessor as a security amount | $ 250 |  |
Security amount reduced each year of beginning | 50 |  |
Carlsbad Lease [Member] | Avidbank [Member] |  |  |
Deposit amount as restricted cash account | 250 |  |
Restricted cash amount | 250 |  |
Short-term restricted cash | 50 |  |
Long-term restricted cash | $ 200 |  |
Covenant description | The amount deposited in such account will not count toward the covenant under the Avidbank loan and security agreement that requires the Company to have an aggregate amount of unrestricted cash in deposit accounts or securities accounts maintained with Avidbank of not less than $2,000,000 at all times. |  |
Capital Leases [Member] |  |  |
Depreciation expenses |  | $ 81 | $ 95

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