Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
OPERATING ACTIVITIES:
Net income (loss)	$ 3,768	$ 2,872
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	1,011	792
Deferred income taxes	(244)	(19)
Stock-based compensation expense	151	312
Excess tax benefit from stock-based payment arrangements	(46)
Provision for losses on accounts receivable	86	30
Gain on disposition of capital assets	(5)	(1)
Changes in operating assets and liabilities:
Trade receivables	(2,937)	(2,221)
Inventories	(4,714)	(2,851)
Other current assets	(413)	(320)
Other assets	17	(81)
Accounts payable - trade	2,445	(1,295)
Accrued liabilities	1,570	(799)
Other long-term liabilities	137	(284)
Supplemental retirement plans	417	348
Net cash provided by operating activities	1,243	(3,517)
INVESTING ACTIVITIES:
Purchases of investments	(574)	(217)
Proceeds from sales of investments	250	59
Proceeds from sale of capital assets	11	1
Capital expenditures	(679)	(3,005)
Net cash (used in) provided by investing activities	(992)	(3,162)
FINANCING ACTIVITIES:
Dividends paid	(1,066)	(1,036)
Proceeds from issuance of common stock	460	273
Excess tax benefit from stock-based payment arrangements	46
Net cash used in financing activities	(560)	(763)
Increase (decrease) in cash and cash equivalents	(309)	(7,442)
Cash and cash equivalents at beginning of year	10,934	13,970
Cash and cash equivalents at end of year	10,625	6,528
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	278	773
Capital Expenditures Incurred but Not yet Paid	$ 151	$ 1,549