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Fixed Assets - Summary (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Fixed Assets
Machinery and equipment	$ 720,000	$ 720,000
Office furniture and equipment	221,000	180,000
Leasehold improvements	192,000	149,000
Right of use asset-operating leases	1,235,000	1,024,000
Fixed assets, gross	2,368,000	2,073,000
Accumulated depreciation and amortization	(1,711,000)	(1,657,000)
Fixed assets, net, before Construction in progress	657,000	416,000
Construction in progress	0	11,000
Property, Plant and Equipment, Net, Total	$ 657,000	$ 427,000

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Net amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from operating lease, excluding construction in progress.

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Amount, before accumulated depreciation and amortization, of property, plant, and equipment and operating lease right-of-use asset, excluding construction in progress .

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Amount, after accumulated depreciation and amortization, of property, plant, and equipment and operating lease right-of-use asset, excluding construction in progress.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount, before accumulated depreciation, of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

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