Equipment, Software, and Leasehold Improvements, net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	$ 4,782	$ 6,759
Accumulated depreciation	(3,719)	(5,527)
Equipment, software, and leasehold improvements, net	1,063	1,232
Depreciation	342	383
Impairment of Long-Lived Assets to be Disposed of	222	0
Computer Equipment [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	2,101	2,988
Impairment of Long-Lived Assets to be Disposed of	100
Software [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	1,598	1,511
Leasehold Improvements [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	454	527
Furniture and Fixtures [Member]
Equipment, Software and Leasehold Improvements [Line Items]
Equipment, software, and leasehold improvements	$ 629	$ 1,733

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Section S99
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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

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

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

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

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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