Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Building [Member]
Non-cash items included in net income
(Gain) on disposition of building		$ (343,000)
Net income	$ 7,532,000	3,115,000
Depreciation and amortization	3,174,000	3,138,000
Deferred income taxes	(448,000)	(101,000)
Deferred compensation plan	310,000	94,000
Stock or Unit Option Plan Expense	2,150,000	882,000
Issuance of common shares as compensation	113,000	96,000
(Gain) Loss on disposition of fixed assets	$ 1,000	(1,000)
Loss on sale of subsidiary		565,000
Allowance for doubtful accounts	$ 131,000	176,000
Inventory obsolescence reserve	699,000	753,000
Changes in certain assets and liabilities:
Accounts receivable	387,000	(2,021,000)
Inventories	(3,480,000)	1,757,000
Refundable income taxes	(475,000)	1,801,000
Accounts payable	(5,962,000)	(784,000)
Accrued expenses and other	920,000	1,792,000
Customer prepayments	438,000	(201,000)
Net cash flows provided by operating activities	5,490,000	10,718,000
Cash Flows from Investing Activities
Purchases of property, plant and equipment	(3,384,000)	(2,404,000)
Proceeds from sale of subsidiary, net of cash sold		1,494,000
Proceeds from sale of fixed assets	4,000	952,000
Net cash flows provided by (used in) investing activities	(3,380,000)	42,000
Cash Flows from Financing Activities
Cash dividends paid	(1,721,000)	(1,688,000)
Exercise of stock options	2,195,000	108,000
Purchase of treasury shares	(277,000)	$ (139,000)
Issuance of treasury shares	47,000
Net cash flows provided by (used in) financing activities	244,000	$ (1,719,000)
Increase in cash and cash equivalents	2,354,000	9,041,000
Cash and cash equivalents at beginning of period	26,409,000	9,013,000
Cash and cash equivalents at end of period	$ 28,763,000	$ 18,054,000