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Patents and Other Intangible Assets (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Patents	$ 2,303,000	$ 2,097,000
Trademarks	69,000	64,000
Other	8,000	8,000
Patents and other intangible assets	2,380,000	2,169,000
Accumulated amortization	(439,000)	(313,000)
Finite-Lived Intangible Assets, Net	1,941,000	1,856,000
Patents Pending [Member]
Patents	1,253,000	1,167,000
Issued Patents [Member]
Patents	1,050,000	930,000
Trademarks Pending [Member]
Trademarks	46,000	41,000
Registered Trademarks [Member]
Trademarks	$ 23,000	$ 23,000

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