Condensed Consolidated Balance Sheets (USD $)	Jul. 01, 2011	Mar. 31, 2011
Current assets:
Cash and cash equivalents	$ 3,355,000	$ 4,744,000
Restricted cash	500,000	500,000
Accounts receivable, net	4,814,000	4,587,000
Inventories	5,062,000	4,775,000
Prepaid expenses and other current assets	326,000	349,000
Total current assets	14,057,000	14,955,000
Equipment and leasehold improvements, net	3,841,000	3,730,000
Goodwill	4,579,000	4,579,000
Intangibles and patents, net	5,435,000	5,713,000
Other assets	265,000	275,000
Total Assets	28,177,000	29,252,000
Current liabilities:
Accounts payable	1,809,000	2,098,000
Accrued compensation	772,000	953,000
Accrued interest	15,000	28,000
Accrued warrant liability	40,000	389,000
Other accrued expenses	1,131,000	905,000
Current portion of long-term debt - related parties	825,000	675,000
Current portion of long-term debt - bank term loan	542,000	687,000
Current portion of long-term debt - bank line of credit	494,000	494,000
Current portion of long-term debt - MEDC/MSF	516,000	511,000
Total current liabilities	6,144,000	6,740,000
Long-term debt, less current portion - related parties	275,000	500,000
Long-term debt, less current portion - MEDC/MSF	1,286,000	1,460,000
Long-term portion of warrant liability	200,000	343,000
Total liabilities	7,905,000	9,043,000
Commitments and contingencies
Shareholders' equity:
Class A Common Stock, $.001 par value, 100,000,000 authorized; July 1, 2011 - 30,744,924 shares issued and outstanding, March 31, 2011 - 30,679,046 shares issued and outstanding	31,000	31,000
Additional paid-in capital	57,936,000	57,891,000
Accumulated deficit	(37,695,000)	(37,713,000)
Total shareholders' equity	20,272,000	20,209,000
Total Liabilities and Shareholders' Equity	$ 28,177,000	$ 29,252,000