Income Taxes (Details 2) - USD ($)	Jun. 30, 2018	Jun. 30, 2017
Deferred tax assets
Allowance for doubtful accounts	$ 540,000	$ 106,000
Stock-based compensation		790,000
Net operating loss	355,000	1,464,000
Total deferred tax assets	895,000	2,360,000
Valuation allowance	(260,500)	(1,610,600)
Deferred tax assets, net - long-term	$ 634,500	$ 749,400