CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 140	$ 132
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued (in shares)	16,442,328	16,443,128
Common stock, shares outstanding (in shares)	16,146,713	16,137,513
Treasury stock, at cost, 295,615 shares repurchased	295,615	295,615