Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net earnings (loss)	$ 991,000	$ (14,130,000)	$ 5,244,000
Non cash operating activities:
Gain on sale of building	(3,089,000)
Depreciation	5,368,000	5,832,000	7,434,000
Amortization	1,658,000	1,382,000	1,283,000
Impairment of building		4,114,000
Stock-based compensation	410,000	404,000	362,000
Net long-term tax obligations	(132,000)	(256,000)	2,414,000
Deferred taxes	498,000	(6,888,000)	985,000
Postretirement benefit and pension obligations	2,387,000	20,947,000	3,367,000
(Income) loss from equity method investment	307,000	(118,000)	(203,000)
Working capital changes:
Accounts receivable	3,863,000	2,774,000	(2,615,000)
Inventories	(2,498,000)	3,615,000	(6,185,000)
Other current assets	(1,192,000)	309,000	483,000
Other current liabilities	(523,000)	1,477,000	718,000
Prepaid pension expense	(5,481,000)	(5,148,000)	(6,731,000)
Other	321,000	22,000	244,000
Net cash provided by operating activities	2,888,000	14,336,000	6,800,000
Cash flows from investing activities:
Business acquisition, net of cash acquired	(1,324,000)
Additions to property, plant and equipment	(4,574,000)	(7,493,000)	(5,052,000)
Software development	(1,262,000)	(747,000)	(648,000)
Purchase of short-term investments			(45,000)
Proceeds from sale of short-term investments		7,621,000	201,000
Proceeds from sale of building	3,321,000
Net cash used in investing activities	(3,839,000)	(619,000)	(5,544,000)
Cash flows from financing activities:
Proceeds from borrowings	500,000	750,000	900,000
Long-term debt repayments	(1,543,000)	(2,202,000)	(2,148,000)
Proceeds from common stock issued	335,000	427,000	564,000
Repurchase of shares	(386,000)	(463,000)	(68,000)
Dividends paid	(2,817,000)	(2,806,000)	(2,795,000)
Net cash used in financing activities	(3,911,000)	(4,294,000)	(3,547,000)
Effect of translation rate changes on cash	(325,000)	(737,000)	(2,834,000)
Net increase (decrease) in cash	(5,187,000)	8,686,000	(5,125,000)
Cash beginning of year	19,794,000	11,108,000	16,233,000
Cash end of year	14,607,000	19,794,000	11,108,000
Supplemental cash flow information:
Interest paid	635,000	654,000	724,000
Taxes paid, net	(136,000)	1,113,000	2,169,000
Non-cash investing and financing activity:
Liability for business acquisition	$ 1,555,000