Income Taxes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax provision (benefit)	$ 100,000	$ (100,000)
Loss from continuing operations before income taxes	1,200,000	$ 7,400,000
Income taxes receivable, noncurrent	2,200,000
Tax reform adjustments	0
Unrecognized tax benefits	$ 800,000		$ 900,000