Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
OPERATING ACTIVITIES:
Net income (loss)	$ 23,786	$ 24,237	$ 22,299
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	7,936	7,556	4,945
Deferred income taxes	1,606	2,731	605
Stock-based compensation expense	1,609	1,470	1,943
Excess tax benefit from stock-based payment arrangements	(1,494)	(1,761)	(817)
Provision for losses on accounts receivable	(100)	(100)	30
Other non-cash, net			(28)
Gain on disposition of capital assets	(512)	(34)	(119)
Gain on life insurance policies		(346)	(745)
Changes in operating assets and liabilities:
Trade receivables	2,356	584	(6,596)
Inventories	(13,492)	27,938	(15,902)
Other current assets	1,036	(1,962)	(3,882)
Other assets	450	59	(1,024)
Accounts payable - trade	4,028	(6,877)	2,083
Accrued liabilities	477	2,052	201
Other long-term liabilities	(1,298)	(1,180)	276
Net cash provided by operating activities	26,388	54,367	3,269
INVESTING ACTIVITIES:
Purchases of investments	(30,537)	(3,100)	(1,955)
Proceeds from sales of investments	12,474	2,900	1,611
Proceeds from sale of capital assets	1,848	76	155
Proceeds from Life Insurance Policies		2,814	5,053
Capital expenditures	(13,457)	(7,382)	(37,423)
Net cash (used in) provided by investing activities	(29,672)	(4,692)	(32,559)
FINANCING ACTIVITIES:
Proceeds from short-term borrowings, net		(11,904)	11,904
Dividends paid	(6,062)	(5,455)	(5,115)
Proceeds from issuance of common stock	1,078	1,591	790
Shares withheld for employee tax obligations	(1,132)	(170)
Excess tax benefit from stock-based payment arrangements	1,494	1,761	817
Net cash used in financing activities	(4,622)	(14,177)	8,396
Increase (decrease) in cash and cash equivalents	(7,906)	35,498	(20,894)
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	9,780	10,140	13,920
Capital Expenditures Incurred but Not yet Paid	$ 1,740	$ 430	$ 130