INCOME TAXES - (Significant Components of Net Deferred Tax Liability) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Deferred income tax assets:
Unearned premiums	$ 9,977	$ 9,543
Unpaid losses and loss adjustment expenses	958	1,050
Accrued expenses	832	689
Net operating loss carryforwards	1,714	1,567
Deferred revenue	236	0
Share-based compensation	255	255
Unrealized gains on investment securities	1,254	0
Other	21	123
Total deferred income tax assets	15,247	13,227
Deferred income tax liabilities:
Deferred acquisition costs	(11,198)	(11,742)
Depreciation and amortization	(577)	(548)
Unrealized gains on investment securities	0	(600)
Other	(273)	(30)
Total deferred income tax liabilities	(12,048)	(12,920)
Deferred income tax asset (liability), net	$ 3,199	$ 307