Consolidated Statements Of Cash Flow (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities
Net Income (Loss)	$ 6,210	$ (333)	$ 1,826
Loss from discontinued operations	(80)	3,160	824
Adjustments to reconcile net loss to net cash provided from (used for) operating activities:
Depreciation and amortization	660	597	694
Stock compensation expense	201	255	440
Deferred income taxes	277	469	882
Disposal of assets and other	83	88	(18)
Allowance for doubtful accounts	(92)	142	154
Changes in assets and liabilities
Receivables, net	(6,038)	(661)	(1,730)
Inventories	(1,340)	58	(347)
Accounts payable	1,702	842	(1,776)
Other current assets and liabilities	2,565	231	4,252
Net cash provided from (used for) operating activities-continuing operations	4,148	4,848	5,201
Net cash provided from (used for) operating activities-discontinued operations	(835)	(1,938)	1,002
Net cash provided from (used for) operating activities	3,313	2,910	6,203
Cash Flows from Financing Activities
Proceeds from stock plans	842	204	326
Repurchase of company stock		(1,348)	(3,199)
Payment of cash dividend	(3,416)
Net cash provided from (used for) financing activities	(2,574)	(1,144)	(2,873)
Cash Flows from Investing Activities
Purchases of short-term investments	(21,080)	(29,467)	(51,091)
Sales of short-term investments	20,698	29,830	50,094
Capital expenditures	(731)	(594)	(813)
Proceeds from sale of Commercial Products Business Unit assets (Note 11)	838
Net cash provided used for investing activities	(275)	(231)	(1,810)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(84)	(656)	796
Net Decrease in Cash and Cash Equivalents	380	879	2,316
Cash and Cash Equivalents, July 1	12,984	12,105	9,789
Cash and Cash Equivalents, June 30	13,364	12,984	12,105
Supplemental Cash Flow Information [Abstract]
Cash paid during the year for interest	8	7	12
Cash paid during the year for income taxes	$ 1,002	$ 497	$ 138