Consolidated Condensed Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Dec. 31, 2020	Jun. 30, 2020
Current assets:
Receivables, net of allowance	$ 338,684	$ 251,954
Stockholders' equity:
Preferred stock, par value	$ .01	$ 0.01
Preferred stock, authorized	30,000,000	30,000,000
Common stock, par value	$ .01	$ 0.01
Common stock, authorized	50,000,000	50,000,000
Common stock, issued	19,529,422	19,484,485
Common stock, outstanding	19,529,422	19,484,485
Series B Preferred Stock
Stockholders' equity:
Preferred stock, authorized	700,000	700,000
Preferred stock, issued	625,375	625,375
Preferred stock, outstanding	625,375	625,375
Series B1 Preferred Stock
Stockholders' equity:
Preferred stock, authorized	550,000	550,000
Preferred stock, issued	212,402	212,402
Preferred stock, outstanding	212,402	212,402