Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract]
Held-to-maturity fixed maturities	$ 404	$ 669
Fixed maturities, Available-for-sale securities, at amortized cost	2,773,566	2,733,557
Fixed maturities, Trading securities, at amortized cost	14,363	8,049
Equity Securities, Available-for-sale securities, at amortized cost	71,651	70,957
Equity Securities, Trading securities, at amortized cost	3,708us-gaap_TradingSecuritiesEquityCost	2,367us-gaap_TradingSecuritiesEquityCost
Allowance for doubtful accounts	618	896
Property and equipment accumulated depreciation	$ 41,492	$ 36,972
Common stock, par value per share (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000us-gaap_CommonStockSharesAuthorized	75,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	25,019,415us-gaap_CommonStockSharesIssued	25,360,893us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	25,019,415us-gaap_CommonStockSharesOutstanding	25,360,893us-gaap_CommonStockSharesOutstanding

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Face amount or stated value per share of common stock.

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