Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance, July 1, 2018 (in shares) at Jun. 30, 2018	21,170,074			34,900
Balance, July 1, 2018 at Jun. 30, 2018	$ 42	$ 44,773	$ (49,952)	$ (99)	$ (5,236)
Compensation expense for employee stock options		144			144
Shares issued upon conversion CD Financial, LLC Convertible Note, net (in shares)	8,230,769
Shares issued upon conversion CD Financial, LLC Convertible Note, net	$ 17	5,256			$ 5,273
Shares issued upon exercise of stock options (in shares)	200,000				200,000
Shares issued upon exercise of stock options		24			$ 24
Net income			1,688		1,688
Balance (in shares) at Jun. 30, 2019	29,600,843			34,900
Balance at Jun. 30, 2019	$ 59	50,197	(48,264)	$ (99)	1,893
Compensation expense for employee stock options		59			$ 59
Shares issued upon exercise of stock options (in shares)	80,000				80,000
Shares issued upon exercise of stock options		7			$ 7
Net income			4,108		4,108
Balance (in shares) at Jun. 30, 2020	29,680,843			34,900
Balance at Jun. 30, 2020	$ 59	$ 50,263	$ (44,156)	$ (99)	$ 6,067