Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
OPERATING ACTIVITIES:
Net income (loss)	$ 24,237	$ 22,299	$ 14,990
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	7,556	4,945	4,197
Deferred income taxes	2,731	605	(138)
Stock-based compensation expense	1,470	1,943	1,290
Excess tax benefit from stock-based payment arrangements	(1,761)	(817)	(1,357)
Provision for losses on accounts receivable	(100)	30	6
Other non-cash, net		(28)	42
Gain on disposition of capital assets	(34)	(119)	(90)
Gain on life insurance policies	(346)	(745)
Changes in operating assets and liabilities:
Trade receivables	584	(6,596)	(2,467)
Inventories	27,938	(15,902)	(5,523)
Other current assets	(1,962)	(3,882)	(278)
Other assets	59	(1,024)	(163)
Accounts payable - trade	(6,877)	2,083	2,117
Accrued liabilities	2,052	201	2,986
Other long-term liabilities	(1,640)	(187)	265
Supplemental retirement plans	460	463	360
Net cash provided by operating activities	54,367	3,269	16,237
INVESTING ACTIVITIES:
Purchases of investments	(3,100)	(1,955)	(5,537)
Proceeds from sales of investments	2,900	1,611	5,209
Proceeds from sale of capital assets	76	155	98
Proceeds from Life Insurance Policies	2,814	5,053
Capital expenditures	(7,382)	(37,423)	(4,187)
Net cash (used in) provided by investing activities	(4,692)	(32,559)	(4,417)
FINANCING ACTIVITIES:
Proceeds from short-term borrowings, net	(11,904)	11,904
Dividends paid	(5,455)	(5,115)	(4,323)
Proceeds from issuance of common stock	1,591	790	2,388
Shares withheld for employee tax obligations	(170)
Excess tax benefit from stock-based payment arrangements	1,761	817	1,357
Net cash used in financing activities	(14,177)	8,396	(578)
Increase (decrease) in cash and cash equivalents	35,498	(20,894)	11,242
Cash and cash equivalents at beginning of year	1,282	22,176	10,934
Cash and cash equivalents at end of year	36,780	1,282	22,176
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	10,140	13,920	6,880
Capital Expenditures Incurred but Not yet Paid	$ 430	$ 130	$ 35