Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Preferred Stock, par value	$ 0.0001	$ 0.0001
Preferred stock, authorized shares	0	0
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, authorized shares	50,000,000	50,000,000
Common Stock, Shares, Issued	43,029,845	42,965,137
Common stock, outstanding shares	42,984,578	42,753,054
Treasury stock	212,083	212,083
Other investments, cost	$ 960,711
Fixed Maturities
Debt Securities, Available-for-sale, Amortized Cost	874,445	$ 763,434
Other Long-term Investments
Other investments, cost	$ 8,288	$ 8,057