Commitments and Contingencies (Details) - USD ($)		1 Months Ended		3 Months Ended			6 Months Ended
	Jul. 23, 2015	Jul. 31, 2015	Aug. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Long-term Purchase Commitment [Line Items]
Operating lease payments				$ 69,000	$ 154,000		$ 195,000	$ 319,000
Impairment charges							134,000	178,000
Operating lease, contract termination payment			$ 150,000
Subsequent event [Member] | UTC Associates Inc. [Member] | Monetary damages, unpaid services [Member]
Long-term Purchase Commitment [Line Items]
Lawsuit, damages sought	$ 1,107,000
Subsequent event [Member] | UTC Associates Inc. [Member] | Monetary damages, lost revenue [Member]
Long-term Purchase Commitment [Line Items]
Lawsuit, damages sought	$ 1,000,000
New Jersey [Member] | Subsequent event [Member]
Long-term Purchase Commitment [Line Items]
Rent expense (per month)		$ 2,500
Pennsylvania [Member]
Long-term Purchase Commitment [Line Items]
Impairment charges						$ 225,000
Pennsylvania [Member] | Property and Equipment [Member]
Long-term Purchase Commitment [Line Items]
Impairment of long-lived assets to be disposed of								$ 101,000
Colorado [Member] | Comerica Bank [Member]
Long-term Purchase Commitment [Line Items]
Letters of credit outstanding, amount				$ 148,000			$ 148,000		$ 185,000