CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 21,354,000	$ 39,653,000	$ 19,570,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	7,787,000	5,086,000	3,231,000
Inventory obsolescence reserve	109,000	281,000	399,000
Amortization of deferred debt issuance costs	553,000	496,000	361,000
Share-based compensation	1,678,000	1,186,000	711,000
Change in interest rate cap fair value	474,000	(435,000)
Unrecognized tax benefits	913,000	(1,199,000)	743,000
Deferred income taxes	(6,734,000)	557,000	4,454,000
Net provision of doubtful accounts	102,000	(31,000)	17,000
Loss on disposal of fixed assets	10,000		10,000
Goodwill and other intangible asset impairment	31,000,000
Changes in operating assets and liabilities:
Accounts receivable	(1,835,000)	(211,000)	(551,000)
Inventories	(449,000)	(2,754,000)	1,193,000
Prepaid expenses and other current assets	(1,464,000)	(763,000)	(658,000)
Income tax receivable	(951,000)		5,000
Other assets	4,000	39,000	45,000
Accounts payable	(2,995,000)	2,847,000	(2,104,000)
Income tax payable	(279,000)	(75,000)	(328,000)
Accrued expenses and other current liabilities	6,609,000	4,720,000	(866,000)
Net cash provided by operating activities	55,886,000	49,397,000	26,232,000
CASH FLOWS FROM INVESTING ACTIVITIES:
Disposal of assets	7,000	96,000
Payment for acquisition, net of cash acquired	(81,729,000)	(80,511,000)
Purchases of property and equipment	(14,064,000)	(5,305,000)	(4,135,000)
Net cash used in investing activities	(95,786,000)	(85,720,000)	(4,135,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of long-term debt	80,000,000	80,832,000
Payments of costs directly associated with offerings			(449,000)
Cash paid for withholding taxes on vested stock	(148,000)	(78,000)	(4,000)
Excess tax benefits			312,000
Principal payments on long-term debt	(41,306,000)	(39,320,000)	(14,865,000)
Payments on revolving line of credit			(3,126,000)
Payments of deferred debt issuance costs	(729,000)	(1,240,000)	0
Net cash provided by (used in) financing activities	37,817,000	40,194,000	(18,132,000)
NET CHANGE IN CASH AND CASH EQUIVALENTS	(2,083,000)	3,871,000	3,965,000
CASH AND CASH EQUIVALENTS — BEGINNING OF PERIOD	7,909,000	4,038,000	73,000
CASH AND CASH EQUIVALENTS — END OF PERIOD	5,826,000	7,909,000	4,038,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash payments for interest	5,526,000	2,976,000	2,006,000
Cash payments for income taxes	12,437,000	13,549,000	$ 6,541,000
SIGNIFICANT NON-CASH INVESTING AND FINANCING ACTIVITIES:
Capital expenditures in accounts payable and accrued expenses	$ 908,000	$ 733,000