Consolidated Statements of Cash Flows - USD ($)		12 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Building [Member]
Non-cash items included in net income
Gain on disposition of building			$ (343,000)
Net income		9,482,000	5,151,000	930,000
Depreciation and amortization		6,677,000	6,331,000	6,226,000
Goodwill and intangible asset impairment	[1]			805,000
Deferred income taxes		(1,117,000)	(226,000)	856,000
Deferred compensation plan		151,000	(761,000)	99,000
Stock based compensation expense		2,903,000	1,239,000	1,005,000
Issuance of common shares as compensation		248,000	191,000	193,000
Gain on disposition of building			(343,000)
Loss on disposition of fixed assets		(1,000)	9,000	36,000
Loss on sale of subsidiary			565,000
Allowance for doubtful accounts		55,000	220,000	6,000
Inventory obsolescence reserve		1,726,000	1,493,000	1,464,000
Change in certain assets and liabilities
Accounts receivable		(3,369,000)	(1,631,000)	3,232,000
Inventories		(2,784,000)	1,000	(4,779,000)
Refundable income taxes		99,000	1,815,000	(538,000)
Accounts payable		(1,130,000)	910,000	1,229,000
Accrued expenses and other		5,116,000	6,115,000	269,000
Customer prepayments		(271,000)	(149,000)	526,000
Net cash flows provided by operating activities		17,785,000	20,930,000	11,559,000
Cash Flows From Investing Activities
Purchases of property, plant, and equipment		(10,211,000)	(4,754,000)	(5,245,000)
Proceeds from sale of subsidiary, net of cash sold			1,494,000
Proceeds from sale of fixed assets		68,000	1,006,000	255,000
Net cash flows (used in) investing activities		(10,143,000)	(2,254,000)	(4,990,000)
Cash Flows From Financing Activities
Cash dividends paid		(4,214,000)	(2,900,000)	(5,780,000)
Purchase of treasury shares		(363,000)	(205,000)	(188,000)
Issuance of treasury shares		340,000	975,000	64,000
Exercise of stock options		4,021,000	850,000	399,000
Net cash flows (used in) financing activities		(216,000)	(1,280,000)	(5,505,000)
Increase in cash and cash equivalents		7,426,000	17,396,000	1,064,000
Cash and cash equivalents at beginning of year		26,409,000	9,013,000	7,949,000
Cash and cash equivalents at end of year		$ 33,835,000	$ 26,409,000	$ 9,013,000

[1] The Company recorded a significant impairment of goodwill and/or intangible assets in fiscal 2014 and 2013, and a minor impairment in fiscal 2012. See Note 6.