Financial Schedules Schedule II - Statement of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 4,529	$ 8,482	$ 14,704
Realized investment gains (losses), net	(196)	(765)	(8,012)
Decrease in fair value of warrants	(451)	(1,136)	(232)
Amortization of premiums and discounts on investments	6,082	4,207	4,381
Depreciation	1,233	1,057	1,048
Accrued investment income	(2,517)	(354)	22
Other, net	(217)	170	19
Net cash provided by operating activities	69,270	64,281	60,539
Purchase of fixed maturities, held-to-maturity	(145,770)	(230,985)	(71,452)
Calls of fixed maturities, held-to-maturity	169,880	83,611	197,600
Purchase of fixed maturities, available-for-sale	(220,401)	(110,356)	(396,188)
Maturities of fixed maturities, available-for-sale	156,863	199,730	189,826
Purchase of equity securities, available-for-sale	(10,000)	(32,504)	(9,668)
Sale of real estate and other long-term investments	5	5	0
Purchase of other long-term investments and property and equipment	(116)	(33)	(302)
Maturity of short-term investments	2,000	0	2,500
Net cash used in investing activities	(50,040)	(85,074)	(62,052)
Warrants exercised	822	1,843	0
Net cash provided by financing activities	3,814	4,325	2,611
Net increase (decrease) in cash and cash equivalents	23,044	(16,468)	1,098
Cash and cash equivalents at beginning of year	33,255	49,723	48,625
Cash and cash equivalents at end of year	56,299	33,255	49,723
Parent Company [Member]
Net income	4,529	8,482	14,704
Realized investment gains (losses), net	(27)	(18)	53
Equity in income of consolidated subsidiaries	(2,822)	(6,035)	(13,086)
Decrease in fair value of warrants	(451)	(1,136)	(232)
Accrued expenses and other liabilities	692	1,762	845
Amortization of premiums and discounts on investments	492	165	96
Depreciation	263	249	227
Accrued investment income	(213)	(210)	(164)
Decrease (increase) in receivable from subsidiaries	305	(81)	1,552
Other, net	(266)	(246)	(295)
Net cash provided by operating activities	2,502	2,932	3,700
Purchase of fixed maturities, held-to-maturity	0	(1,156)	0
Calls of fixed maturities, held-to-maturity	0	1,000	0
Purchase of fixed maturities, available-for-sale	(16,199)	(24,794)	(18,254)
Maturities of fixed maturities, available-for-sale	8,017	8,725	1,750
Purchase of equity securities, available-for-sale	0	(1,000)	0
Sale of real estate and other long-term investments	11	16	61
Purchase of other long-term investments and property and equipment	(5)	(154)	(437)
Maturity of short-term investments	0	0	0
Capital contributions to subsidiary	0	0	0
Net cash used in investing activities	(8,176)	(17,363)	(16,880)
Dividend from subsidiary	5,400	6,800	19,800
Warrants exercised	822	1,843	0
Purchase of the Company's stock from affiliates	(553)	(1,226)	(4,314)
Net cash provided by financing activities	5,669	7,417	15,486
Net increase (decrease) in cash and cash equivalents	(5)	(7,014)	2,306
Cash and cash equivalents at beginning of year	16,494	23,508	21,202
Cash and cash equivalents at end of year	$ 16,489	$ 16,494	$ 23,508