Leases (Schedule of Future Minimum Base Rental Payment) (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
2019	$ 676,000
2020	891,000
2021	728,000
2022	489,000
2023	468,000
2024	39,000
Thereafter
Remaining balance of lease payments	3,291,000
Lease payments related to leases not commenced as of March 31, 2019	480,000
Difference between undiscounted cash flows and discounted cash flows	304,000
Other reconciling items	(23,000)
Lease liabilities	$ 2,530,000