Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax liabilities:
Deferred policy acquisition costs	$ (3,361)	$ (6,717)
Net unrealized holding gain on investments	(4,688)	(7,395)
Agency relationship	(28)	(56)
Intangible assets	(2,476)	(4,623)
Goodwill	(357)	(559)
Bond amortization	(111)
Fixed assets	(860)	(1,106)
Other	(303)	(435)
Total deferred tax liabilities	(12,184)	(20,891)
Deferred tax assets:
Unearned premiums	6,901	11,184
Amortization of non-compete agreements	107	238
Pension liability	746	1,436
Net operating loss carry-forward	200	319
Unpaid loss and loss adjustment expense	3,422	6,208
Rent reserve	158	247
Bond amortization		434
Bonus accrual	302	291
Investment impairments	1,956	1,419
Other	329	480
Total deferred tax assets	14,121	22,256
Deferred federal income taxes, net	$ 1,937	$ 1,365