Stockholder's Equity (Details 1) - RSUs [Member] $ / shares in Units, $ in Thousands	6 Months Ended
Jun. 30, 2019 USD ($) $ / shares shares	Jun. 30, 2018 USD ($)
Restricted stock units, number of shares
Outstanding RSUs, beginning of period \| shares	96,230
Awarded \| shares	0
Released \| shares	0
Forfeited \| shares	(18,181)
Outstanding RSUs, end of period \| shares	78,049
Restricted stock units, weighted average grant-date fair value
Outstanding RSUs, beginning of period \| $ / shares	$ 2.78
Awarded \| $ / shares	0.00
Released \| $ / shares	0.00
Forfeited \| $ / shares	0.00
Outstanding RSUs, end of period \| $ / shares	$ 2.27
Restricted stock units, additional disclosures
Outstanding RSUs, weighted average remaining contractual term	1 month 6 days
Outstanding RSUs, aggregate intrinsic value \| $	$ 126	$ 227

No definition available.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
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-Paragraph 2
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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-Publisher FASB
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No definition available.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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-Name Accounting Standards Codification
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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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-Paragraph 2
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- Definition

Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

+ References

No definition available.

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