Commitments and Contingencies (Details) - USD ($) $ in Thousands		1 Months Ended			3 Months Ended			9 Months Ended
	Jul. 23, 2015	Oct. 31, 2015	Mar. 31, 2015	Aug. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Long-term Purchase Commitment [Line Items]
Operating lease payments					$ 75	$ 166		$ 270	$ 485
Impairment charges								138	178
Operating lease, contract termination payment				$ 150
UTC Associates Inc. [Member] | Monetary damages, unpaid services [Member]
Long-term Purchase Commitment [Line Items]
Lawsuit, damages sought	$ 1,107
UTC Associates Inc. [Member] | Monetary damages, lost revenue [Member]
Long-term Purchase Commitment [Line Items]
Lawsuit, damages sought	$ 1,000
New Jersey [Member] | Subsequent event [Member]
Long-term Purchase Commitment [Line Items]
Rent expense (per month)		$ 1
New Jersey [Member] | Property and Equipment, including Furniture and Leasehold Improvements [Member]
Long-term Purchase Commitment [Line Items]
Impairment of long-lived assets to be disposed of			$ 138
Pennsylvania [Member]
Long-term Purchase Commitment [Line Items]
Impairment charges							$ 225
Pennsylvania [Member] | Property and Equipment, including Furniture and Leasehold Improvements [Member]
Long-term Purchase Commitment [Line Items]
Impairment of long-lived assets to be disposed of					134	$ 105
Pennsylvania [Member] | Property and Equipment [Member]
Long-term Purchase Commitment [Line Items]
Impairment of long-lived assets to be disposed of									$ 101
Colorado [Member] | Comerica Bank [Member]
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding, amount					$ 116			$ 116		$ 185