Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Tax Contingency [Line Items]
Provision (benefit) for income taxes	$ 115,000	$ 1,254,000	$ 846,000	$ 778,000
Percentage of federal statutory tax rate	34.00%	34.00%
Income tax expense or benefit recorded in US federal and state tax jurisdictions			0
Uncertain tax positions, interest and penalties	$ 0		0
Accrued interest or penalties	$ 0		$ 0		$ 300,000.0
Domestic | Earliest Tax Year
Income Tax Contingency [Line Items]
Income tax examination, open tax year			1996
Domestic | Latest Tax Year
Income Tax Contingency [Line Items]
Income tax examination, open tax year			2015
Foreign | Earliest Tax Year
Income Tax Contingency [Line Items]
Income tax examination, open tax year			2010
Foreign | Latest Tax Year
Income Tax Contingency [Line Items]
Income tax examination, open tax year			2015