Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
OPERATING ACTIVITIES:
Net income (loss)	$ 5,793	$ 5,326
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	1,772	1,404
Deferred income taxes	(353)	(71)
Stock-based compensation expense	860	493
Provision for losses on accounts receivable	88	(180)
Gain on disposition of capital assets	(3)	(16)
Changes in operating assets and liabilities:
Trade receivables	(572)	(425)
Inventories	(5,042)	(5,332)
Other current assets	(552)	(142)
Other assets	(101)	10
Accounts payable - trade	1,242	1,593
Accrued liabilities	(1,306)	(219)
Other long-term liabilities	(200)	(476)
Deferred compensation	439	41
Net cash provided by operating activities	2,065	2,006
INVESTING ACTIVITIES:
Purchases of investments	(737)	(576)
Proceeds from sales of investments	114	286
Proceeds from sale of capital assets	3	16
Capital expenditures	(4,918)	(2,676)
Net cash (used in) provided by investing activities	(5,538)	(2,950)
FINANCING ACTIVITIES:
Dividends paid	(3,148)	(1,180)
Proceeds from issuance of common stock	800	106
Net cash used in financing activities	(2,348)	(1,074)
Increase (decrease) in cash and cash equivalents	(5,821)	(2,018)
Cash and cash equivalents at beginning of year	13,970	17,889
Cash and cash equivalents at end of year	8,149	15,871
SUPPLEMENTAL INFORMATION CASH PAID DURING THE PERIOD FOR:
Income taxes paid (refunded)	3,560	2,390
Capital Expenditures Incurred but Not yet Paid		$ 702