Property, Plant and Equipment (Tables)	12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment Improvements	December 31, 2021 2020 Computer hardware and software $ 1,008 $ 921Lab and factory equipment 21,100 20,554Furniture, fixtures and office equipment 59 59Finance lease - equipment 116 116Finance lease - manufacturing facility 12,968 12,706Construction in progress 11,804 1,734Leasehold improvements 151 128Factory Equipment - Gov't Award 1,170 -Total property, plant and equipment 48,376 36,218Less: accumulated depreciation and amortization (17,893) (15,086)Property, plant and equipment, net $ 30,483 $ 21,132

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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