Condensed Consolidated Statements Shareholders' Equity - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Loss) [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Jun. 30, 2019	$ 15,043	$ 3,493	$ 10,745	$ 1,058	$ (253)
Beginning Balance,Shares at Jun. 30, 2019		6,987,000
Net earnings (loss)	(261)			(261)
Share-based compensation	28		28
Ending Balance at Sep. 30, 2019	14,810	$ 3,493	10,773	797	(253)
Ending Balance, Shares at Sep. 30, 2019		6,987,000
Beginning Balance at Jun. 30, 2019	15,043	$ 3,493	10,745	1,058	(253)
Beginning Balance,Shares at Jun. 30, 2019		6,987,000
Net earnings (loss)	(461)
Ending Balance at Mar. 31, 2020	14,507	$ 3,450	10,713	597	(253)
Ending Balance, Shares at Mar. 31, 2020		6,899,000
Beginning Balance at Sep. 30, 2019	14,810	$ 3,493	10,773	797	(253)
Beginning Balance,Shares at Sep. 30, 2019		6,987,000
Net earnings (loss)	(42)			(42)
Repurchase of shares	(6)	$ (1)	(5)
Repurchase of shares, Shares		(4,000)
Ending Balance at Dec. 31, 2019	14,762	$ 3,492	10,768	755	(253)
Ending Balance, Shares at Dec. 31, 2019		6,983,000
Net earnings (loss)	(158)			(158)
Repurchase of shares	(97)	$ (42)	(55)
Repurchase of shares, Shares		(84,000)
Ending Balance at Mar. 31, 2020	14,507	$ 3,450	10,713	597	(253)
Ending Balance, Shares at Mar. 31, 2020		6,899,000
Beginning Balance at Jun. 30, 2020	$ 13,743	$ 3,450	10,714	(82)	(339)
Beginning Balance,Shares at Jun. 30, 2020	6,899,000	6,899,000
Net earnings (loss)	$ (340)			(340)
Ending Balance at Sep. 30, 2020	13,403	$ 3,450	10,714	(422)	(339)
Ending Balance, Shares at Sep. 30, 2020		6,899,000
Beginning Balance at Jun. 30, 2020	$ 13,743	$ 3,450	10,714	(82)	(339)
Beginning Balance,Shares at Jun. 30, 2020	6,899,000	6,899,000
Net earnings (loss)	$ 2,203
Repurchase of shares, Shares	(87,534)
Ending Balance at Mar. 31, 2021	$ 15,946	$ 3,460	10,704	2,121	(339)
Ending Balance, Shares at Mar. 31, 2021	6,920,000	6,920,000
Beginning Balance at Sep. 30, 2020	$ 13,403	$ 3,450	10,714	(422)	(339)
Beginning Balance,Shares at Sep. 30, 2020		6,899,000
Net earnings (loss)	3,074			3,074
Ending Balance at Dec. 31, 2020	16,477	$ 3,450	10,714	2,652	(339)
Ending Balance, Shares at Dec. 31, 2020		6,899,000
Share options exercised	$ 0	$ 10	(10)
Share options exercised, Shares	60,000	21,000
Net earnings (loss)	$ (531)			(531)
Ending Balance at Mar. 31, 2021	$ 15,946	$ 3,460	$ 10,704	$ 2,121	$ (339)
Ending Balance, Shares at Mar. 31, 2021	6,920,000	6,920,000