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Leases (Summary of Lease Costs and Other Lease Information (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020
Lease costs:
Operating lease costs		$ 680	$ 677
Variable lease costs	[1]	98	101
Sublease income		(11)	(11)
Net lease costs		767	767
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		661	648
Right of use assets obtained in exchange for new operating lease liabilities		$ 864	$ 334
[1] Variable lease costs primarily represent variable payments such as common area maintenance, insurance, taxes and utilities.

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Cash paid for amounts included in measurement of lease liabilities.

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Amount of lease cost recognized by lessee for lease contract.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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