Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
OPERATING ACTIVITIES:
Net income (loss)	$ 10,141	$ 11,129
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	4,058	3,590
Deferred income taxes	617	1,805
Stock-based compensation expense	925	728
Excess tax benefit from stock-based payment arrangements	(1,182)	(687)
Provision for losses on accounts receivable	(40)	(50)
Gain on disposition of capital assets	(143)	12
Gain on sale of investments		(346)
Changes in operating assets and liabilities:
Trade receivables	604	(4,628)
Inventories	(10,379)	2,645
Other current assets	1,063	(3,809)
Other assets	(73)
Accounts payable - trade	6,676	(2,117)
Accrued liabilities	437	301
Other long-term liabilities	(540)	695
Supplemental retirement plans	(45)	(17)
Net cash provided by (used in) operating activities	12,119	9,251
INVESTING ACTIVITIES:
Purchases of investments	(1,699)	(1,294)
Proceeds from sales of investments	1,600	1,097
Proceeds from sale of capital assets	143	20
Proceeds from life insurance policies		2,836
Capital expenditures	(6,005)	(5,848)
Net cash (used in) provided by investing activities	(5,961)	(3,189)
FINANCING ACTIVITIES:
Dividends paid	(2,941)	(2,707)
Repayments of short-term debt		(5,959)
Proceeds from issuance of common stock	770	1,128
Proceeds from issuance of shares under incentive and share-based compensation plans, excluding stock options	(1,132)	(164)
Excess tax benefit from stock-based payment arrangements	1,182	687
Net cash (used in) provided by financing activities	(2,121)	(7,015)
Increase (decrease) in cash and cash equivalents	4,037	(953)
Cash and cash equivalents at beginning of year	36,780	1,282
Cash and cash equivalents at end of year	40,817	329
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	2,440	5,728
Capital expenditures in accounts payable	2,388	110
Interest		$ 61