Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
OPERATING ACTIVITIES:
Net income (loss)	$ 4,752	$ 5,762
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	2,032	1,742
Deferred income taxes	699	(3)
Stock-based compensation expense	639	171
Excess tax benefit from stock-based payment arrangements	(1,034)	(20)
Provision for losses on accounts receivable	(100)	(50)
Gain on disposition of capital assets	(63)
Changes in operating assets and liabilities:
Trade receivables	1,884	(1,492)
Inventories	(794)	4,970
Other current assets	1,247	846
Other assets	(133)
Accounts payable - trade	2,307	(3,641)
Accrued liabilities	346	(567)
Other long-term liabilities	(580)	126
Supplemental retirement plans	32	664
Net cash provided by (used in) operating activities	11,234	8,508
INVESTING ACTIVITIES:
Purchases of investments	(790)	(149)
Proceeds from sales of investments	768	94
Proceeds from sale of capital assets	63
Capital expenditures	(4,491)	(2,090)
Net cash (used in) provided by investing activities	(4,450)	(2,145)
FINANCING ACTIVITIES:
Dividends paid	(1,386)	(1,347)
Proceeds from long-term debt, net		(5,097)
Proceeds from issuance of common stock	588	644
Proceeds from issuance of shares under incentive and share-based compensation plans, excluding stock options	(1,132)
Excess tax benefit from stock-based payment arrangements	1,034	20
Net cash (used in) provided by financing activities	(896)	(5,780)
Increase (decrease) in cash and cash equivalents	5,888	583
Cash and cash equivalents at beginning of year	36,780	1,282
Cash and cash equivalents at end of year	42,668	1,865
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	(1,224)	150
Capital expenditures in accounts payable	2	142
Interest		$ 37