Condensed Consolidated Statements of Cash Flows (Unaudited) (Under Review) (USD $)	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities
Net income	$ 3,115,000	$ 2,735,000
Non-cash items included in net income:
Depreciation and amortization	3,138,000	2,969,000
Deferred income taxes	(101,000)	(49,000)
Deferred compensation plan	94,000	87,000
Stock option expense	882,000	779,000
Issuance of common shares as compensation	96,000	96,000
(Gain) on disposition of fixed assets	(1,000)	(38,000)
Loss on sale of subsidiary	565,000
Allowance for doubtful accounts	176,000	68,000
Inventory obsolescence reserve	753,000	743,000
Changes in certain assets and liabilities:
Accounts receivable	(2,021,000)	4,787,000
Inventories	1,757,000	(5,864,000)
Refundable income taxes	1,801,000	1,061,000
Accounts payable	(784,000)	368,000
Accrued expenses and other	1,792,000	(1,563,000)
Customer prepayments	(201,000)	2,368,000
Net cash flows provided by operating activities	10,718,000	8,547,000
Cash Flows from Investing Activities
Purchases of property, plant and equipment	(2,404,000)	(2,721,000)
Proceeds from sale of subsidiary, net of cash sold	1,494,000
Proceeds from sale of fixed assets	952,000	40,000
Net cash flows provided by (used in) investing activities	42,000	(2,681,000)
Cash Flows from Financing Activities
Cash dividends paid	(1,688,000)	(2,887,000)
Exercise of stock options	108,000	152,000
Purchase of treasury shares	(139,000)	(150,000)
Issuance of treasury shares		10,000
Net cash flows (used in) financing activities	(1,719,000)	(2,875,000)
Increase in cash and cash equivalents	9,041,000	2,991,000
Cash and cash equivalents at beginning of period	9,013,000	7,949,000
Cash and cash equivalents at end of period	18,054,000	10,940,000
Building [Member]
Non-cash items included in net income:
(Gain) on disposition of building	$ (343,000)