CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flow from operating activities:
Net income (loss)	$ 1,011	$ 14,710	$ 5,342
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net realized and unrealized investment (gains) losses	(7,084)	4,144	(8,548)
Loss (gain) on early extinguishment of debt	(3,575)	0	0
Amortization of investment premium or discount, net	916	1,546	3,909
Depreciation and amortization	1,477	1,385	1,166
Share-based compensation	2,176	2,367	2,846
Changes in operating assets and liabilities:
Prepaid reinsurance premiums	(11,803)	26,915	21,440
Premiums receivable, net	(8,654)	16,602	8,461
Reinsurance recoverable, net	9,412	(86,823)	(76,738)
Deferred acquisition costs and value of business acquired, net	(7,979)	1,457	999
Income taxes, net	(3,723)	6,109	4,403
Deferred revenue	756	(1,637)	(612)
Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve	11,472	65,715	72,405
Unearned premiums	28,365	(12,431)	401
Reinsurance payable	14,797	(8,345)	(7,210)
Other	602	(1,444)	(15,158)
Net cash provided by (used in) operating activities	35,316	30,270	13,106
Cash flow from investing activities:
Proceeds from sales of debt securities	164,196	228,777	249,584
Proceeds from sales of equity securities	9,203	10,639	57,125
Maturities and redemptions of debt securities	43,925	92,744	38,038
Purchases of debt securities	(228,132)	(337,776)	(339,667)
Purchases of equity securities	(6,565)	(13,542)	(35,811)
Payment for acquisition, net of cash acquired	10,402	0	0
Purchases of property and equipment	(2,040)	(2,026)	(976)
Net cash provided by (used in) investing activities	(9,011)	(21,184)	(31,707)
Cash flow from financing activities:
Proceeds from issuance of long-term debt, net of issuance costs	98,390	0	45,000
Payment of long-term debt and prepayment penalties	(48,000)	(5,000)	0
Purchase of non-controlling interest	0	(16,685)	0
Purchases of FedNat Holding Company common stock	(3,449)	(5,061)	(10,616)
Issuance of common stock for share-based awards	1	39	103
Dividends paid	(4,309)	(4,184)	(4,251)
Net cash provided by (used in) financing activities	42,633	(30,891)	30,236
Net increase (decrease) in cash and cash equivalents	68,938	(21,805)	11,635
Cash and cash equivalents at beginning-of-period	64,423	86,228	74,593
Cash and cash equivalents at end-of-period	133,361	64,423	86,228
Supplemental disclosure of cash flow information:
Cash paid (received) during the period for income taxes	4,860	4,266	308
Cash paid (received) during the period for income taxes	3,504	(1,104)	(354)
Significant non-cash investing and financing transactions:
Right-of-use asset	(8,096)	0	0
Lease liability	$ 8,096	$ 0	$ 0