Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred income tax assets:
Accrued benefits and retirement services	$ 3,189	$ 3,049
Other-than-temporary impairment of assets	167	178
Net operating loss carryforward	118	77
Allowance for doubtful accounts	65	91
Reinsurance and commission payable	9	36
Postretirement benefit obligation	39	9
Other	1,129	1,329
Total deferred income tax assets	4,716	4,769
Deferred income tax liabilities:
Net unrealized gain on investments	8,090	6,691
Recorded reserve for claims, net of statutory premium reserves	1,199	1,096
Excess of tax over book depreciation	1,149	947
Intangible assets	1,086	1,168
Other	1,784	1,905
Total deferred income tax liabilities	13,308	11,807
Net deferred income tax liabilities	$ (8,592)	$ (7,038)