Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash Flows from Operating Activities
Net income	$ 2,304,000	$ 8,054,000
Non-cash items included in net income:
Depreciation and amortization	5,689,000	4,903,000
Intangible asset impairment	479,000
Deferred income taxes	(947,000)	(126,000)
Deferred compensation plan	196,000	328,000
Stock compensation expense	2,292,000	2,542,000
Issuance of common shares as compensation	331,000	168,000
(Gain) loss on disposition of fixed assets	52,000	(87,000)
(Gain) on sale of building	(1,361,000)
Fixed asset impairment and accelerated depreciation	354,000
Allowance for doubtful accounts	248,000	162,000
Inventory obsolescence reserve	981,000	1,351,000
Changes in certain assets and liabilities, net of acquisition:
Accounts receivable	5,189,000	5,588,000
Inventories	3,190,000	(4,440,000)
Refundable income taxes	(143,000)	(531,000)
Accounts payable	(965,000)	(3,176,000)
Accrued expenses and other	(5,119,000)	812,000
Customer prepayments	174,000	(310,000)
Net cash flows provided by operating activities	12,944,000	15,238,000
Cash Flows from Investing Activities
Purchases of property, plant and equipment	(3,534,000)	(8,410,000)
Acquisition of business, net of cash received and warrants issued	(95,077,000)
Proceeds from sale of fixed assets	3,081,000	124,000
Net cash flows (used in) investing activities	(95,530,000)	(8,286,000)
Cash Flows from Financing Activities
Payments of long-term debt	(14,882,000)
Borrowings of long-term debt	69,649,000
Cash dividends paid	(3,772,000)	(2,959,000)
Exercise of stock options	2,401,000	3,604,000
Purchase of treasury shares	(446,000)	(317,000)
Issuance of treasury shares	176,000	90,000
Net cash flows provided by financing activities	53,126,000	418,000
Increase (decrease) in cash and cash equivalents	(29,460,000)	7,370,000
Cash and cash equivalents at beginning of period	33,835,000	26,409,000
Cash and cash equivalents at end of period	$ 4,375,000	$ 33,779,000