Investments - Fixed-maturity securities available-for-sale (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Investments
Fixed maturity securities Due after one year through three years Amortized Cost	$ 18,512
Fixed maturity securities Due after three years through five years Amortized Cost	0
Fixed maturity securities Due after five years through 10 years Amortized Cost	8,082
Fixed Maturity Securities, Costs	26,594	$ 25,761
Fixed maturity securities Due after one year through three years Fair Value	14,269
Fixed maturity securities Due after three years through five years Fair Value	0
Fixed maturity securities Due after five years through 10 years Fair Value	7,160
Fixed maturity securities, available-for-sale, fair value	$ 21,429	$ 20,393