Income Taxes - Summary of provision for (benefit from) income taxes (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Current:
Federal		$ 84,420	$ 0	$ 0
State		23,093	10,676	9,938
Less net operating loss carryforward applied		(98,996)
Total current		8,517	10,676	9,938
Deferred:
Federal		(182,517)	(451,591)	424,038
State		4,405	(65,877)	91,789
Valuation Allowance		39,236	536,240	(352,727)
Total deferred		(138,876)	18,772	163,100
Provision (benefit)	$ 136,386	$ (130,359)	$ 29,448	$ 173,038