CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Apr. 30, 2014
Current assets:
Cash and cash equivalents	$ 10,320	$ 10,444	[1]
Accounts receivable, net of allowance for doubtful accounts of $75	219	712	[1]
Costs and estimated earnings in excess of billings on uncompleted contracts	17	0	[1]
Deferred cost of revenues	3	3	[1]
Inventories	1,700	1,398	[1]
Other current assets	409	217	[1]
Total current assets	12,668	12,774	[1]
Equipment, furniture and fixtures, net	547	612	[1]
Other noncurrent assets	49	49	[1]
Total assets	13,264	13,435	[1]
Current liabilities:
Accounts payable	839	397	[1]
Accrued payroll and related taxes	442	640	[1]
Warranty reserves	97	188	[1]
Payable to Parent	152	152	[1]
Other current liabilities	248	41	[1]
Deferred revenues	463	470	[1]
Total current liabilities	2,241	1,888	[1]
Long-term liabilities	10	11	[1]
Total liabilities	2,251	1,899	[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	(45,357)	(44,834)	[1]
Total shareholders' equity	11,013	11,536	[1]
Total liabilities and shareholders' equity	$ 13,264	$ 13,435	[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, 2014 filed with the SEC.