Commitments and Contingencies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Letter Contract	Dec. 31, 2017 USD ($)
Operating Leases, Future Minimum Payments Due [Abstract]
2019	$ 922
2020	785
2021	796
2022	771
2023	451
Thereafter	106
Total	3,831
Rent Expense [Abstract]
Rent expense	$ 900	$ 800
Standby Letters of Credit, Bank Guarantees, Surety Bonds and Performance Bonds [Abstract]
Number of letters of credit | Letter	5
BB&T Bank [Member]
Standby Letters of Credit, Bank Guarantees, Surety Bonds and Performance Bonds [Abstract]
Number of letters of credit | Letter	0
Citizen's Bank [Member]
Standby Letters of Credit, Bank Guarantees, Surety Bonds and Performance Bonds [Abstract]
Number of letters of credit | Contract	5
Outstanding letter of credit balance	$ 2,300