Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Fixed maturity securities, amortized cost	$ 137,004	$ 113,915
Equity securities, amortized cost	$ 8,629	$ 4,283
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	8,520,328	7,633,070
Common stock, shares outstanding (in shares)	8,520,328	7,633,070