CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 16,785	$ 17,498
Accounts receivable, net of allowance for doubtful accounts of $29 and $28, respectively	2,901	2,427
Inventory	1,967	2,219
Prepaid and other current assets	315	398
TOTAL CURRENT ASSETS	21,968	22,542
PROPERTY, PLANT AND EQUIPMENT, net	4,492	4,632
INTANGIBLE ASSETS, net of accumulated amortization of $268 and $257, respectively	587	464
TOTAL ASSETS	27,047	27,638
CURRENT LIABILITIES
Accounts payable	830	752
Accrued liabilities	1,349	1,302
Deferred revenue	1,706	1,881
TOTAL CURRENT LIABILITIES	3,885	3,935
LONG-TERM DEFERRED REVENUE	588	358
OTHER LONG-TERM LIABILITIES	135	165
TOTAL LIABILITIES	4,608	4,458
STOCKHOLDERS' EQUITY
Common stock, $0.01 par value per share; 20,000,000 shares authorized; 15,242,374 and 15,206,127 shares issued and outstanding, respectively	152	152
Additional paid-in capital	22,863	22,537
Retained earnings (accumulated deficit)	(576)	491
TOTAL STOCKHOLDERS' EQUITY	22,439	23,180
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 27,047	$ 27,638