Quarterly report pursuant to Section 13 or 15(d)

Accounting Policies - Schedule of New Accounting Pronouncements and Changes in Accounting Principles (Details) (Parenthetical)

v3.10.0.1
Accounting Policies - Schedule of New Accounting Pronouncements and Changes in Accounting Principles (Details) (Parenthetical) - USD ($)
Dec. 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Accounting Policies [Abstract]      
Accounts receivable, allowance $ 376,178 $ 610,061 $ 571,511
Preferred stock, par value $ 0.01 $ 0.01 $ 0.01
Preferred stock, shares authorized 500,000 500,000 500,000
Common stock, par value $ 0.01 $ 0.01 $ 0.01
Common stock, shares authorized 14,500,000 14,500,000 14,500,000
Common stock, shares issued 11,860,310 11,708,469 11,225,385
Common stock, shares outstanding 11,654,457 11,502,616 11,190,606
Treasury stock, shares 205,853 205,853 34,779