CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 3	$ 20
Common shares, par value (in dollars per share)	$ 0	$ 0
Common shares, authorized	50,000,000	50,000,000
Common shares, issued	4,025,193	4,052,987
Common shares, outstanding	4,025,193	4,052,987