Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Effective income tax rate reconciliation [Line Items]
Percentage of valuation allowance (in hundredths)			100.00%
Income tax benefit from continuing operations	$ (3,941)	$ (909)	$ (3,577)	$ (988)
Income tax expense on sale of discontinuing operations	$ 3,954		$ 3,954
US Subsidiaries [Member]
Effective income tax rate reconciliation [Line Items]
Statutory income tax rate (in hundredths)	34.00%		36.80%
UK Subsidiaries [Member]
Effective income tax rate reconciliation [Line Items]
Statutory income tax rate (in hundredths)			20.00%
Israeli Subsidiaries [Member]
Effective income tax rate reconciliation [Line Items]
Statutory income tax rate (in hundredths)			26.50%
Effective income tax rate (in hundredths			15.60%