The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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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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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Property, Plant and Equipment (Detail Textuals) - USD ($)		3 Months Ended		6 Months Ended
	Mar. 09, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Sell unused commercial real property in Franklinville, New York	$ 180,000
Depreciation and amortization expense		$ 244,000	$ 218,000	$ 502,000	$ 428,000
Depreciation		224,000	215,000	465,000	421,000
Amortization		20,000	$ 3,000	37,000	$ 7,000
Advanced Technology Group ("ATG") and the Consumer Products Group ("CPG")
Property, Plant and Equipment [Line Items]
Construction in progress		$ 776,000		$ 776,000		$ 665,000