Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Sep. 30, 2019	Jun. 30, 2019
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 6,506,794	$ 5,670,274
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, par value
Preferred stock, shares issued
Common stock, shares authorized	50,000,000	50,000,000
Common stock, par value
Common stock, shares issued	16,834,534	16,054,534
Common stock, shares outstanding	16,659,037	15,879,037
Treasury stock, shares	175,497	175,497