Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income tax expense	$ 1,255,000	$ 2,014,000	$ 3,841,000	$ 5,632,000
Effective income tax rate, continuing operations	18.60%	34.90%	19.20%	35.10%
Unrecognized tax benefits, income tax penalties and interest expense	$ 0	$ 0	$ 0	$ 0
Unrecognized tax benefits, income tax penalties and interest accrued	$ 0		$ 0		$ 0