Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Cash Flows From Operating Activities
Net income	$ (19,541,000)	$ 3,000,000	$ 9,482,000
Non-cash items included in net income
Depreciation and amortization	10,222,000	8,262,000	6,677,000
Impairment of goodwill and intangible asset	28,000,000	479,000
Deferred income taxes	(4,748,000)	(779,000)	(1,117,000)
Deferred compensation plan	359,000	455,000	491,000
Stock based compensation expense	3,012,000	3,049,000	2,903,000
Issuance of common shares as compensation	319,000	409,000	248,000
(Gain) on disposition of building		(1,361,000)
(Gain) loss on disposition of fixed assets	(26,000)	484,000	(1,000)
Allowance for doubtful accounts	214,000	349,000	55,000
Inventory obsolescence reserve	2,605,000	2,088,000	1,726,000
Change in certain assets and liabilities, net of acquisition
Accounts receivable	(1,943,000)	4,948,000	(3,369,000)
Inventories	(3,591,000)	535,000	(2,784,000)
Refundable income taxes	(1,009,000)	(775,000)	99,000
Accounts payable	(1,883,000)	2,278,000	(1,130,000)
Accrued expenses and other	(499,000)	(2,180,000)	5,116,000
Customer prepayments	9,000	9,000	(271,000)
Net cash flows provided by operating activities	11,500,000	21,250,000	18,125,000
Cash Flows From Investing Activities
Purchases of property, plant, and equipment	(3,406,000)	(6,633,000)	(10,211,000)
Acquisition of business, net of cash received and warrants issued		(95,077,000)
Proceeds from sale of fixed assets	1,538,000	3,095,000	68,000
Net cash flows (used in) investing activities	(1,868,000)	(98,615,000)	(10,143,000)
Cash Flows From Financing Activities
Payments of long-term debt	(99,258,000)	(41,282,000)
Borrowings of long-term debt	94,920,000	90,781,000
Cash dividends paid	(5,154,000)	(5,048,000)	(4,214,000)
Purchase of treasury shares	(107,000)	(494,000)	(363,000)
Shares withheld for employee taxes	(179,000)
Exercise of stock options	285,875	2,945,986	4,124,047
Net cash flows provided by (used in) financing activities	(9,493,000)	46,569,000	(556,000)
Increase (decrease) in cash and cash equivalents	139,000	(30,796,000)	7,426,000
Cash and cash equivalents at beginning of year	3,039,000	33,835,000	26,409,000
Cash and cash equivalents at end of year	$ 3,178,000	$ 3,039,000	$ 33,835,000