Stock-Based Awards (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Noncash stock-based compensation expense	$ 123
Stock-based compensation	5,402	$ 3,932
RSUs [Member]
Noncash stock-based compensation expense	1,200
Stock-based compensation	1,000
2012 Equity Incentive Plan [Member]
Common shares reserved for future issuance		16,000,000
2012 Equity Incentive Plan [Member] \| Employees [Member]
Employee withholding taxes in exchange vesting rsus	$ 200
Employee withholding taxes in exchange vesting rsus, shares	134,000
2002 and 2012 Plan [Member]
Unrecognized compensation costs related to unvested stock options	$ 6,300
Expense recognized, weighted average period	2 years 7 months 6 days
2002 Plan and 2012 Plan [Member]
Weighted-average estimated fair value of stock options granted	$ 1.24	$ 1.65

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Name Accounting Standards Codification
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-Section 50
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-Section S99
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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

The number of restricted shares issued as compensation, net of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes.

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The value of restricted shares issued as compensation, net of the value of shares for the payment of withholding taxes. This element is to be used only if shares are used in lieu of cash to satisfy all or a portion of withholding taxes.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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