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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

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