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Nature of Business and Going Concern - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Going Concern [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ (958)	$ (544)	$ (2,321)	$ (1,513)
Retained Earnings (Accumulated Deficit)	(119,078)		(119,078)			$ (114,322)
Operating Income (Loss)	(2,186)	(564)	(4,436)	(1,725)
Cash and Cash Equivalents, at Carrying Value, Total	$ 9,688	$ 4,537	$ 9,688	$ 4,537	$ 10,232	$ 3,926	$ 5,081	$ 942

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Going Concern [Line Items]

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The net result for the period of deducting operating expenses from operating revenues.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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