CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Shares	Common Stock	Additional Paid-in Capital	Retained Earnings	Unearned ESOP Shares	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Jun. 30, 2017		0	16,846,002
Beginning Balance at Jun. 30, 2017	$ 229,552	$ 0	$ 16,846	$ 41,495	$ 236,993	$ (4,289)	$ (61,493)
Net loss	840				840
Unrealized losses on cash flow hedges, net of reclassifications to earnings	(993)						(993)
ESOP compensation expense, including reclassifications	580			580
Share-based compensation (in shares)			(2,732)
Share based compensation	226		$ (3)	229
Ending Balance (in shares) at Sep. 30, 2017		0	16,843,270
Ending Balance at Sep. 30, 2017	231,979	$ 0	$ 16,843	42,304	239,816	(4,289)	(62,695)
Beginning Balance (in shares) at Jun. 30, 2017		0	16,846,002
Beginning Balance at Jun. 30, 2017	229,552	$ 0	$ 16,846	41,495	236,993	(4,289)	(61,493)
Net loss	(18,414)
Change in funded status of retiree benefit obligations, net of tax	0
Ending Balance (in shares) at Mar. 31, 2018		14,700	16,927,988
Ending Balance at Mar. 31, 2018	223,744	$ 15	$ 16,928	54,780	220,306	(2,145)	(66,140)
Beginning Balance (in shares) at Sep. 30, 2017		0	16,843,270
Beginning Balance at Sep. 30, 2017	231,979	$ 0	$ 16,843	42,304	239,816	(4,289)	(62,695)
Net loss	(17,060)				(17,060)
Unrealized losses on cash flow hedges, net of reclassifications to earnings	(1,215)						(1,215)
ESOP compensation expense, including reclassifications	619			(1,525)		2,144
Share-based compensation (in shares)			12,452
Share based compensation	419		$ 13	406
Stock option exercises (in shares)			43,945
Stock option exercises	625		$ 44	581
Consideration for Boyd Coffee acquisition (shares)		14,700
Purchase consideration	11,572	$ 15		11,557
Cumulative preferred dividends, undeclared and unpaid	(129)
Ending Balance (in shares) at Dec. 31, 2017		14,700	16,899,667
Ending Balance at Dec. 31, 2017	226,810	$ 15	$ 16,900	53,323	222,627	(2,145)	(63,910)
Net loss	(2,193)				(2,193)
Unrealized losses on cash flow hedges, net of reclassifications to earnings	(2,230)						(2,230)
Change in funded status of retiree benefit obligations, net of tax	0
ESOP compensation expense, including reclassifications	590			590
Share-based compensation (in shares)			(565)
Share based compensation	458		$ (1)	459
Stock option exercises (in shares)			28,886
Stock option exercises	437		$ 29	408
Cumulative preferred dividends, undeclared and unpaid	(128)
Ending Balance (in shares) at Mar. 31, 2018		14,700	16,927,988
Ending Balance at Mar. 31, 2018	223,744	$ 15	$ 16,928	54,780	220,306	(2,145)	(66,140)
Beginning Balance (in shares) at Jun. 30, 2018		14,700	16,951,659
Beginning Balance at Jun. 30, 2018	229,055	$ 15	$ 16,952	55,965	220,307	(2,145)	(62,039)
Net loss	(2,986)				(2,986)
Unrealized losses on cash flow hedges, net of reclassifications to earnings	(4,637)						(4,637)
ESOP compensation expense, including reclassifications	529			529
Share based compensation	433			433
Stock option exercises (in shares)			26,042
Stock option exercises	326		$ 26	300
Cumulative preferred dividends, undeclared and unpaid	(132)
Ending Balance (in shares) at Sep. 30, 2018		14,700	16,977,701
Ending Balance at Sep. 30, 2018	222,588	$ 15	$ 16,978	57,227	217,189	(2,145)	(66,676)
Beginning Balance (in shares) at Jun. 30, 2018		14,700	16,951,659
Beginning Balance at Jun. 30, 2018	229,055	$ 15	$ 16,952	55,965	220,307	(2,145)	(62,039)
Net loss	(64,835)
Change in funded status of retiree benefit obligations, net of tax	(7,594)
Ending Balance (in shares) at Mar. 31, 2019		14,700	17,004,561
Ending Balance at Mar. 31, 2019	165,784	$ 15	$ 17,005	57,321	155,072	0	(63,629)
Beginning Balance (in shares) at Sep. 30, 2018		14,700	16,977,701
Beginning Balance at Sep. 30, 2018	222,588	$ 15	$ 16,978	57,227	217,189	(2,145)	(66,676)
Net loss	(10,100)				(10,100)
Unrealized losses on cash flow hedges, net of reclassifications to earnings	2,398						2,398
Pension settlement charge, net of taxes	8,147
Change in funded status of retiree benefit obligations, net of tax	(5,651)						(5,651)
ESOP compensation expense, including reclassifications	405			(1,740)		2,145
Share-based compensation (in shares)			16,266
Share based compensation	490		$ 16	474
Stock option exercises (in shares)			8,562
Stock option exercises	182		$ 9	173
Cumulative preferred dividends, undeclared and unpaid	(134)
Ending Balance (in shares) at Dec. 31, 2018		14,700	17,002,529
Ending Balance at Dec. 31, 2018	218,325	$ 15	$ 17,003	56,134	206,955	0	(61,782)
Net loss	(51,749)				(51,749)
Unrealized losses on cash flow hedges, net of reclassifications to earnings	(2,705)						(2,705)
Pension settlement charge, net of taxes	2,801
Change in funded status of retiree benefit obligations, net of tax	(1,943)						(1,943)
ESOP compensation expense, including reclassifications	700			700
Share-based compensation (in shares)			2,032
Share based compensation	489		$ 2	487
Cumulative preferred dividends, undeclared and unpaid	(134)
Ending Balance (in shares) at Mar. 31, 2019		14,700	17,004,561
Ending Balance at Mar. 31, 2019	$ 165,784	$ 15	$ 17,005	$ 57,321	$ 155,072	$ 0	$ (63,629)