Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	Treasury Stock [Member]	Key Executive Deferred Compensation [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Jun. 30, 2020	26,466	(180)
Balance at Jun. 30, 2020	$ 127,713	$ (1,121)	$ 1,121	$ (93)	$ (1,920)	$ 125,700
Net Income	0	0	0	0	1,990	1,990
Other comprehensive income (loss)	$ 0	$ 0	0	45	0	45
Stock compensation awards (in shares)	12	0
Stock compensation awards	$ 75	$ 0	0	0	0	75
Restricted stock units issued (in shares)	28	0
Restricted stock units issued	$ 0	$ 0	0	0	0	0
Shares issued for deferred compensation (in shares)	62	0
Shares issued for deferred compensation	$ 412	$ 0	0	0	0	412
Activity of treasury shares, net (in shares)	0	(59)
Activity of treasury shares, net	$ 0	$ (383)	0	0	0	(383)
Deferred stock compensation	0	0	383	0	0	383
Stock compensation expense	$ 505	$ 0	0	0	0	505
Stock options exercised, net (in shares)	11	0
Stock options exercised, net	$ 53	$ 0	0	0	0	53
Dividends — $0.20 per share	$ 0	$ 0	0	0	(1,340)	(1,340)
Balance (in shares) at Sep. 30, 2020	26,579	(239)
Balance at Sep. 30, 2020	$ 128,758	$ (1,504)	1,504	(48)	(1,270)	127,440
Balance (in shares) at Jun. 30, 2021	26,863	(346)
Balance at Jun. 30, 2021	$ 132,526	$ (2,450)	2,450	49	(1,405)	131,170
Net Income	0	0	0	0	3,133	3,133
Other comprehensive income (loss)	$ 0	$ 0	0	(44)	0	(44)
Stock compensation awards (in shares)	10	0
Stock compensation awards	$ 75	$ 0	0	0	0	75
Shares issued for deferred compensation (in shares)	263	0
Shares issued for deferred compensation	$ 2,042	$ 0	0	0	0	2,042
Activity of treasury shares, net (in shares)	0	(261)
Activity of treasury shares, net	$ 0	$ (2,021)	0	0	0	(2,021)
Deferred stock compensation	0	0	2,021	0	0	2,021
Stock compensation expense	$ 556	$ 0	0	0	0	556
Stock options exercised, net (in shares)	3	0
Stock options exercised, net	$ 16	$ 0	0	0	0	16
Dividends — $0.20 per share	$ 0	$ 0	0	0	(1,328)	(1,328)
Restricted stock units issued, net of shares withheld for tax withholdings (in shares)	79	0
Restricted stock units issued, net of shares withheld for tax withholdings	$ (247)	$ 0	0	0	0	(247)
Balance (in shares) at Sep. 30, 2021	27,218	(607)
Balance at Sep. 30, 2021	$ 134,968	$ (4,471)	$ 4,471	$ 5	$ 400	$ 135,373