Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2011	May 31, 2011
ASSETS
Cash and cash equivalents	$ 3,126	$ 4,020	[1]
Accounts receivable, net of allowances for doubtful accounts of $32 and $23 at November 30, 2011 and May 31, 2011, respectively	2,101	1,432	[1]
Inventories, net	5,579	4,958	[1]
Prepaid expenses and other	218	161	[1]
Total current assets	11,024	10,571	[1]
Property and equipment, net	707	954	[1]
Other assets	177	558	[1]
Total assets	11,908	12,083	[1]
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	1,494	885	[1]
Accrued expenses	1,553	1,434	[1]
Deferred revenue	271	221	[1]
Total current liabilities	3,318	2,540	[1]
Income tax payable	128	204	[1]
Deferred lease commitment	209	238	[1]
Total liabilities	3,655	2,982	[1]
Shareholders' equity:
Common stock, $0.01 par value: Issued and outstanding: 9,055 shares and 8,932 shares at November 30, 2011 and May 31, 2011, respectively.	91	89	[1]
Additional paid-in capital	48,196	47,747	[1]
Accumulated other comprehensive income	2,543	2,593	[1]
Accumulated deficit	(42,577)	(41,328)	[1]
Total shareholders' equity	8,253	9,101	[1]
Total liabilities and shareholders' equity	$ 11,908	$ 12,083	[1]

[1] The condensed consolidated balance sheet at May 31, 2011 has been derived from the audited consolidated financial statements at that date.