Income Taxes (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 1,499	$ 1,403
Amounts of tax benefits that would affect effective tax rate if recognized	1,380	1,272
Income tax accrued interest	173	136
Income tax penalties accrued
Statute of limitations	$ 317