Investments - Available for sale investments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Certificates of deposit
Amortized cost of fixed maturity investments by asset type	$ 19,489,000	$ 15,089,000
Gross unrealized gains by asset type	0	0
Gross unrealized losses by asset type	0	0
Investments at fair value	19,489,000	15,089,000
U.S. treasury securities
Amortized cost of fixed maturity investments by asset type	25,064,427	20,064,111
Gross unrealized gains by asset type	90,158	14,476
Gross unrealized losses by asset type	(680)	(9,031)
Investments at fair value	25,153,905	20,069,556
Total fixed maturities
Amortized cost of fixed maturity investments by asset type	44,553,427	35,153,111
Gross unrealized gains by asset type	90,158	14,476
Gross unrealized losses by asset type	(680)	(9,031)
Investments at fair value	$ 44,642,905	$ 35,158,556