CONDENSED CONSOLIDATED BALANCE SHEETS (IN THOUSANDS, EXCEPT NUMBER OF SHARES) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 256	$ 259
Provision for obsolete inventory	$ 660	$ 695
Common stock, authorized	15,000,000	15,000,000
Common stock, issued	3,673,055	3,553,055
Common stock, outstanding	3,673,055	3,553,055