Retirement Plan (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)
Retirement Benefits [Abstract]
Minimum percentage of compensation allowed to be deferred			0.01
Maximum percentage of compensation alllowed to be deferred			100.00%
Employer matching and profit-sharing contributions	$ 0	$ 0	$ 0	$ 0