Consolidated Statements of Stockholders' Equity - USD ($)	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, 2014	7,513,677			515,923
Balance at Jun. 30, 2014	$ 74,000	$ 19,865,000	$ 25,661,000	$ (2,693,000)	$ (469,000)	$ 42,438,000
Issuance of common stock for restricted stock grants (in shares)	105,000
Issuance of common stock for restricted stock grants	$ 1,000	(1,000)
Compensation expense related to stock compensation plans		390,000				390,000
Repurchase of common stock (in shares)				359,661
Repurchase of common stock				$ (2,021,000)		(2,021,000)
Tax effect of stock compensation		4,000				4,000
Change in minimum pension liability, net of tax					(141,000)	(141,000)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax					(156,000)	(156,000)
Net income			3,346,000			3,346,000
Balance (in shares) at Jun. 30, 2015	7,618,677			875,584
Balance at Jun. 30, 2015	$ 75,000	20,258,000	29,007,000	$ (4,714,000)	(766,000)	43,860,000
Issuance of common stock for restricted stock grants (in shares)	208,000
Issuance of common stock for restricted stock grants	$ 2,000	(2,000)
Compensation expense related to stock compensation plans		724,000				724,000
Repurchase of common stock (in shares)				82,465
Repurchase of common stock				$ (648,000)		(648,000)
Tax effect of stock compensation		158,000				158,000
Change in minimum pension liability, net of tax					(132,000)	(132,000)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax					218,000	218,000
Net income			9,546,000			9,546,000
Balance (in shares) at Jun. 30, 2016	7,826,677			958,049
Balance at Jun. 30, 2016	$ 77,000	$ 21,138,000	$ 38,553,000	$ (5,362,000)	$ (680,000)	$ 53,726,000