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Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Statement of Financial Position [Abstract] |  |
Fixed maturities, available-for-sale, amortized cost | $ 91,336 | $ 100,314
Equity securities, cost | $ 27,382 | $ 26,003
Preferred stock, shares authorized | 1,000 | 1,000
Preferred stock, shares issued | 0 | 0
Common stock, no par value |  |
Common stock, shares authorized | 10,000 | 10,000
Common stock, shares issued | 1,887 | 1,886
Common stock, shares outstanding | 1,887 | 1,886
Common stock, held by Company's subsidiary | 292 | 292

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