CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2014	Apr. 30, 2013
Current assets:
Cash and cash equivalents	$ 11,609	$ 7,259	[1]
Certificates of deposit	249	1,245	[1]
Accounts receivable, net of allowance for doubtful accounts of $75	626	2,054	[1]
Deferred cost of revenues	1	132	[1]
Inventories	1,431	3,665	[1]
Deferred income taxes	0	1,555	[1]
Other current assets	181	298	[1]
Total current assets	14,097	16,208	[1]
Equipment, furniture and fixtures, net	541	573	[1]
Other noncurrent assets	49	53	[1]
Total assets	14,687	16,834	[1]
Current liabilities:
Accounts payable	791	2,180	[1]
Accrued payroll and related taxes	321	384	[1]
Warranty reserves	218	139	[1]
Payable to Parent	202	202	[1]
Other current liabilities	334	38	[1]
Deferred revenues	785	5,451	[1]
Total current liabilities	2,651	8,394	[1]
Long-term liabilities	12	0	[1]
Total liabilities	2,663	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	(44,346)	(47,930)	[1]
Total shareholders' equity	12,024	8,440	[1]
Total liabilities and shareholders' equity	$ 14,687	$ 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.