SUBSEQUENT EVENTS - (Narrative) (Details) - USD ($)		12 Months Ended
	Feb. 25, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Apr. 20, 2019	Mar. 31, 2019	Mar. 05, 2019
Subsequent Event [Line Items]
Repayments of debt		$ 5,000,000	$ 0	$ 0
Forecast [Member] | Florida [Member]
Subsequent Event [Line Items]
Approved rate increase, percent					4.60%
Subsequent Event [Member] | 1347 Property Insurance Holdings, Inc [Member]
Subsequent Event [Line Items]
Consideration transferred	$ 51,000,000
Cash payments made in acquisition	25,500,000
Equity interests issued	$ 25,500,000
Resale of shares issued, Standstill Agreement term	5 years
Repayments of debt	$ 45,000,000
Right of first refusal agreement, term	5 years
Right of first refusal agreement, threshold, percent	7.50%
Investment advisory services agreement, term	5 years
Minimum net book value	$ 42,000,000
Subsequent Event [Member] | 1347 Property Insurance Holdings, Inc [Member] | Alabama, Florida, Georgia, Louisiana, South Carolina and Texas [Member]
Subsequent Event [Line Items]
Non-compete agreement, term	5 years
Subsequent Event [Member] | Senior Unsecured Fixed Rate Notes, Due 2029 [Member] | Unsecured Debt [Member]
Subsequent Event [Line Items]
Debt instrument face amount							$ 100,000,000
Interest rate percentage							7.50%
Subsequent Event [Member] | Senior Unsecured Fixed Rate Notes, Due 2029 [Member] | Unsecured Debt [Member] | Forecast [Member]
Subsequent Event [Line Items]
Debt instrument face amount						$ 100,000,000
Interest rate percentage						7.50%