Fair Value of Financial Instruments - Fair Value of Invested Assets (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
U.S. treasury securities	$ 16,137,753	$ 23,538,002
Certificates of deposit	7,794,000	10,090,000
Total fixed maturities	23,931,753	33,628,002
Cash and short term investments	94,708,211	86,416,755
Total financial instruments at fair value	118,639,964	120,044,757
Level 1
U.S. treasury securities	16,137,753	23,538,002
Certificates of deposit	0	0
Total fixed maturities	16,137,753	23,538,002
Cash and short term investments	94,708,211	86,416,755
Total financial instruments at fair value	110,845,964	109,954,757
Level 2
U.S. treasury securities	0	0
Certificates of deposit	7,794,000	10,090,000
Total fixed maturities	7,794,000	10,090,000
Cash and short term investments	0	0
Total financial instruments at fair value	7,794,000	10,090,000
Level 3
U.S. treasury securities	0	0
Certificates of deposit	0	0
Total fixed maturities	0	0
Cash and short term investments	0	0
Total financial instruments at fair value	$ 0	$ 0