CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flow from operating activities:
Net income (loss)	$ 14,710	$ 5,342	$ 1,261
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net realized and unrealized investment (gains) losses	4,144	(8,548)	(3,045)
Amortization of investment premium or discount, net	1,546	3,909	5,346
Depreciation and amortization	1,385	1,166	869
Share-based compensation	2,367	2,846	4,420
Tax impact related to share-based compensation	(44)	(193)	0
Changes in operating assets and liabilities:
Prepaid reinsurance premiums	26,915	21,440	24,908
Premiums receivable, net	16,602	8,461	(16,260)
Reinsurance recoverable, net	(86,823)	(76,738)	(35,149)
Deferred acquisition costs	1,457	999	(24,226)
Income taxes, net	6,153	4,596	(16,485)
Deferred revenue	(1,637)	(612)	1,074
Loss and loss adjustment expense reserves	65,715	72,405	60,404
Unearned premiums	(12,431)	401	40,062
Reinsurance payable	(8,345)	(7,210)	18,085
Other	(1,444)	(15,158)	8,486
Net cash provided by (used in) operating activities	30,270	13,106	69,750
Cash flow from investing activities:
Proceeds from sales of equity securities	10,639	57,125	30,621
Proceeds from sales of debt securities	228,777	249,584	198,676
Purchases of equity securities	(13,542)	(35,811)	(16,716)
Purchases of debt securities	(337,776)	(339,667)	(325,397)
Maturities and redemptions of debt securities	92,744	38,038	81,812
Purchases of property and equipment	(2,026)	(976)	(2,147)
Net cash provided by (used in) investing activities	(21,184)	(31,707)	(33,151)
Cash flow from financing activities:
Proceeds from issuance of long-term debt	0	45,000	0
Payment of long-term debt	(5,000)	0	0
Purchase of non-controlling interest	(16,685)	0	0
Purchases of FedNat Holding Company common stock	(5,061)	(10,616)	(11,317)
Issuance of common stock for share-based awards	39	103	361
Tax impact related to share-based compensation	0	0	589
Dividends paid	(4,184)	(4,251)	(4,677)
Net cash provided by (used in) financing activities	(30,891)	30,236	(15,044)
Net increase (decrease) in cash and cash equivalents	(21,805)	11,635	21,555
Cash and cash equivalents at beginning-of-period	86,228	74,593	53,038
Cash and cash equivalents at end-of-period	64,423	86,228	74,593
Supplemental disclosure of cash flow information:
Cash paid (received) during the period for income taxes	4,266	308	313
Cash paid (received) during the period for income taxes	$ (1,104)	$ (354)	$ 14,360