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, 2018							8,656,677			1,098,268
Balance at Jun. 30, 2018							$ 85	$ 24,486	$ 50,839	$ (6,584)	$ (578)	$ 68,248
Compensation expense related to stock compensation plans								1,291				1,291
Repurchase of common stock (in shares)										89,353
Repurchase of common stock										$ (941)		(941)
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax											1,659	1,659
Net (loss) income									6,734			6,734
Issuance of common stock for restricted stock grants (in shares)							190,000
Issuance of common stock for restricted stock grants							$ 2	(2)
Forfeiture of restricted stock (in shares)										405,000
Forfeiture of restricted stock								4		$ (4)
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 Mar. 31, 2019							8,851,677			1,592,621
Balance at Mar. 31, 2019							$ 87	25,817	57,573	$ (7,529)	1,081	77,029
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
Net (loss) income									(3,443)			(3,443)
Balance (in shares) at Mar. 31, 2020							8,856,677			2,065,281
Balance at Mar. 31, 2020							$ 87	27,631	54,485	$ (11,437)	(17)	70,749
Balance (in shares) at Dec. 31, 2018							8,676,677			1,147,755
Balance at Dec. 31, 2018							$ 85	25,823	55,579	$ (7,014)	657	75,130
Repurchase of common stock (in shares)										44,866
Repurchase of common stock										$ (511)		(511)
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax												424
Net (loss) income												1,994
Issuance of common stock for restricted stock grants (in shares)							175,000
Issuance of common stock for restricted stock grants							$ 2	(2)
Forfeiture of restricted stock (in shares)										400,000
Forfeiture of restricted stock								4		$ (4)
Compensation expense related to stock compensation plans								(8)				$ (8)
Issuance of common stock for stock option exercise (in shares)												0
Balance (in shares) at Mar. 31, 2019							8,851,677			1,592,621
Balance at Mar. 31, 2019							$ 87	25,817	57,573	$ (7,529)	1,081	$ 77,029
Balance (in shares) at Dec. 31, 2018							8,676,677			1,147,755
Balance at Dec. 31, 2018							$ 85	25,823	55,579	$ (7,014)	657	75,130
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax											424	424
Net (loss) income									1,994
Balance (in shares) at Dec. 31, 2019							8,856,677			1,801,273
Balance at Dec. 31, 2019							$ 87	27,172	58,500	$ (9,287)	(352)	76,120
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
Compensation expense related to stock compensation plans								1,351				1,351
Repurchase of common stock (in shares)										423,676
Repurchase of common stock										$ (3,482)		(3,482)
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax											(181)	(181)
Net (loss) income												(3,443)
Issuance of common stock for restricted stock grants (in shares)							5,000
Issuance of common stock for restricted stock grants
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 | Accounting Standards Update 2018-02 [Member]									128		(128)
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect											(128)
Issuance of common stock for stock option exercise (in shares)												0
Balance (in shares) at Mar. 31, 2020							8,856,677			2,065,281
Balance at Mar. 31, 2020							$ 87	27,631	54,485	$ (11,437)	(17)	$ 70,749
Balance (in shares) at Dec. 31, 2019							8,856,677			1,801,273
Balance at Dec. 31, 2019							$ 87	27,172	58,500	$ (9,287)	(352)	76,120
Compensation expense related to stock compensation plans								459				459
Repurchase of common stock (in shares)										264,008
Repurchase of common stock										$ (2,150)		(2,150)
Unrealized gain (loss) resulting from change in fair value of derivative instruments, net of tax											335	335
Net (loss) income									(4,015)			$ (4,015)
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect
Issuance of common stock for stock option exercise (in shares)												0
Balance (in shares) at Mar. 31, 2020							8,856,677			2,065,281
Balance at Mar. 31, 2020							$ 87	$ 27,631	$ 54,485	$ (11,437)	$ (17)	$ 70,749