Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jun. 30, 2017	7,981,677			1,044,659
Balance at Jun. 30, 2017	$ 79	$ 22,260	$ 45,788	$ (6,074)	$ (905)	$ 61,148
Issuance of common stock for restricted stock grants (in shares)	675,000
Issuance of common stock for restricted stock grants	$ 6	(6)
Compensation expense related to stock compensation plans		2,232				2,232
Repurchase of common stock (in shares)				43,610
Repurchase of common stock				$ (510)		(510)
Forfeiture of restricted stock (in shares)				9,999
Forfeiture of restricted stock
Change in minimum pension liability, net of tax					104	104
Unrealized gain resulting from change in fair value of derivative instruments, net of tax					223	223
Net income			5,051			$ 5,051
Issuance of common stock for stock option exercise (in shares)						0
Balance (in shares) at Jun. 30, 2018	8,656,677			1,098,268
Balance at Jun. 30, 2018	$ 85	24,486	50,839	$ (6,584)	(578)	$ 68,248
Issuance of common stock for restricted stock grants (in shares)	190,000
Issuance of common stock for restricted stock grants	$ 2	(2)
Compensation expense related to stock compensation plans		1,754				1,754
Repurchase of common stock (in shares)				123,337
Repurchase of common stock				$ (1,367)		(1,367)
Forfeiture of restricted stock (in shares)				405,000
Forfeiture of restricted stock		4		$ (4)
Change in minimum pension liability, net of tax					(104)	(104)
Unrealized gain resulting from change in fair value of derivative instruments, net of tax					974	974
Net income			6,541			$ 6,541
Issuance of common stock for stock option exercise (in shares)	5,000					5,000
Issuance of common stock for stock option exercise		38				$ 38
Balance (in shares) at Jun. 30, 2019	8,851,677			1,626,605
Balance at Jun. 30, 2019	$ 87	$ 26,280	$ 57,380	$ (7,955)	$ 292	$ 76,084