Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Current Federal Tax Expense (Benefit)	$ (1,147)	$ (1,906)	$ 10,143
Deferred Federal Income Tax Expense (Benefit)	(9,911)	1,920	2,103
Federal Income Tax Expense (Benefit), Continuing Operations	(11,058)	14	12,246
Current State and Local Tax Expense (Benefit)	496	1,001	2,054
Deferred State and Local Income Tax Expense (Benefit)	1,327	290	202
State and Local Income Tax Expense (Benefit), Continuing Operations	1,823	1,291	2,256
Income Tax Expense (Benefit)	(9,235)	1,305	$ 14,502
Deferred tax assets:
Deferred Tax Asset, Unearned Premiums	17,459	19,113
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Policyholder Liabilities	1,113	1,479
Deferred Tax Asset, Bad Debt Expense	90	54
Deferred Tax Asset, Other-than-temporary-impairment	16	27
Deferred Tax Assets, Other	89	507
Deferred Tax Assets, Gross	19,297	21,180
Deferred tax liabilities:
Deferred Tax Liability, Unrealized Gain	(2,822)	(642)
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost	(21,549)	(19,586)
Deferred Tax Liabilities, Intangible Assets	(10,883)	(3,371)
Deferred Tax Liabilities, Other	(63)	(895)
Deferred Tax Liabilities, Gross	36,762	25,999
Deferred Tax Liabilities, Property, Plant and Equipment	(689)
Deferred Tax Assets, Net	$ 17,465	$ 4,819