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Commitments and Contingent Liabilities (Schedule of Future Minimum Operating Lease) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Minimum Lease Payments, Sale Leaseback Transactions, Fiscal Year Maturity [Abstract]
2019		$ 500
2020		800
2021		800
2022		800
2023		800
Thereafter		5,300
Total Lease Payments		9,000
Imputed Interest		(2,100)
Present Value of Lease Payments		6,900
Less Current Portion	[1]	(600)
Non-Current Lease Liability		$ 6,260
[1] Included in Other Current Liabilities

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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