Office Properties and Equipment, net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Office Properties and Equipment
Office properties and equipment, gross	$ 5,630	$ 5,561
Less accumulated depreciation	(3,388)	(3,155)
Office properties and equipment, net	2,242	2,406
Depreciation expense	241	256
Rent expense	593	587
Land
Office Properties and Equipment
Office properties and equipment, gross	572	572
Office buildings and improvements
Office Properties and Equipment
Office properties and equipment, gross	3,264	3,203
Furniture, fixtures and equipment
Office Properties and Equipment
Office properties and equipment, gross	$ 1,794	$ 1,786

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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