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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Value of stock issued as a result of the exercise of stock options.

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Summary of Significant Accounting Policies (Details Narrative) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) Number Segment	Jun. 30, 2017 USD ($) Number	Dec. 31, 2017 USD ($) Segment	Sep. 30, 2018 USD ($)	Aug. 31, 2018 USD ($)
Cash	$ 604	$ 69	$ 763
Subsequent Event [Member]
Cash				$ 2,000	$ 2,000
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Percentage of concentration risk	50.40%		100.00%
Number of customers	2		1
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member]
Percentage of concentration risk	60.00%	85.00%
Number of customers	2	1
Warrant [Member]
Proceeds from exercise of common stock warrants	$ 370
Convertible Notes Payable [Member]
Original debt converted	$ 405