Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	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, 2019							8,851,677			1,626,605
Balance (Accounting Standards Update 2016-02 [Member]) at Jun. 30, 2019			$ 420			$ 420
Balance at Jun. 30, 2019							$ 87	$ 26,280	$ 57,380	$ (7,955)	$ 292	$ 76,084
Repurchase of common stock (in shares)										1,717
Repurchase of common stock										$ (15)		(15)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax											387	387
Net income									96			96
Compensation expense related to stock compensation plans								433				433
Forfeiture of restricted stock (in shares)										15,000
Forfeiture of restricted stock
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect									128		(128)
Balance (in shares) at Sep. 30, 2019							8,851,677			1,643,322
Balance at Sep. 30, 2019							$ 87	26,713	58,024	$ (7,970)	551	77,405
Balance (in shares) at Jun. 30, 2020							8,856,677			2,104,305
Balance at Jun. 30, 2020							$ 87	27,992	56,181	$ (11,702)	(1,183)	71,375
Compensation expense related to stock compensation plans								361				361
Repurchase of common stock (in shares)										236,082
Repurchase of common stock										$ (1,743)		(1,743)
Unrealized loss resulting from change in fair value of derivative instruments, net of tax											(1,120)	(1,120)
Net income									2,258			2,258
Balance (in shares) at Sep. 30, 2020							8,856,677			2,340,387
Balance at Sep. 30, 2020							$ 87	$ 28,353	$ 58,439	$ (13,445)	$ (2,303)	$ 71,131