CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Apr. 30, 2013
Current assets:
Cash and cash equivalents	$ 7,544	$ 7,259	[1]
Certificates of deposit	498	1,245	[1]
Accounts receivable, net of allowance for doubtful accounts of $75	3,138	2,054	[1]
Deferred cost of revenues	2	132	[1]
Inventories	2,197	3,665	[1]
Deferred income taxes	34	1,555	[1]
Other current assets	115	298	[1]
Total current assets	13,528	16,208	[1]
Equipment, furniture and fixtures, net	546	573	[1]
Other noncurrent assets	51	53	[1]
Total assets	14,125	16,834	[1]
Current liabilities:
Accounts payable	742	2,180	[1]
Accrued payroll and related taxes	391	384	[1]
Warranty reserves	338	139	[1]
Payable to Parent	202	202	[1]
Other current liabilities	126	38	[1]
Deferred revenues	1,252	5,451	[1]
Total current liabilities	3,051	8,394	[1]
Commitments and contingencies			[1]
Shareholders' equity:
Preferred shares, no par value; 20,000 shares authorized; no shares issued or outstanding	0	0	[1]
Common shares, no par value; 50,000 shares authorized; 12,963 shares issued and outstanding	56,370	56,370	[1]
Accumulated deficit	(45,296)	(47,930)	[1]
Total shareholders' equity	11,074	8,440	[1]
Total liabilities and shareholders' equity	$ 14,125	$ 16,834	[1]

[1] Derived from the consolidated audited financial statements included in the Company's Annual Report on Form 10-K for the fiscal year ended April 30, 2013 filed with the SEC.