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Gain on Sale of Assets	12 Months Ended
Gain on Sale of Assets	Dec. 31, 2018
Gain on Sale of Assets [Abstract]
GAIN ON SALE OF ASSETS	14. GAIN ON SALE OF ASSETS During the third quarter of 2018, we sold the assets underlying our water diagnostic product for $700,000. This sale of assets was recognized as an operating activity at that time in accordance with ASC 610: Other Income and ASC 810: Consolidation. An upfront payment of $250,000 was received upon closing, a second payment of $250,000 is due during the third quarter of 2019 and a third payment of $200,000 is due during the fourth quarter of 2019 (both of these payments receivable were recorded in prepaid expenses and other current assets as of December 31, 2018).