Consolidated Balance Sheets (USD $)	Jul. 31, 2011	Apr. 30, 2011
Current Assets:
Cash and cash equivalents	$ 746,695	$ 345,105
Accounts receivable, less allowance for doubtful accounts and sales returns of $225,000 at July 31, 2011 and April 30, 2011	3,837,997	4,630,240
Inventories	5,333,057	5,461,791
Other current assets	162,308	127,279
Total current assets	10,080,057	10,564,415
Property and equipment, at cost:
Machinery and equipment	11,967,553	11,930,806
Leasehold improvements	1,407,242	1,238,923
Property and equipment, gross	13,374,795	13,169,729
Less: accumulated depreciation and amortization	12,345,143	12,207,476
Net property and equipment	1,029,652	962,253
Other assets	96,611	111,136
Intangible assets, net of accumulated amortization	2,532,077	1,940,338
Goodwill	1,299,345	1,241,981
Total assets	15,037,742	14,820,123
Current liabilities:
Note payable-revolving credit line	1,024,817	2,153,889
Accounts payable	1,935,108	2,944,928
Accrued liabilities	904,487	840,146
Due to related party	1,500,000	1,500,000
Total current liabilities	5,364,412	7,438,963
Stockholders' Equity:
Common stock, par value $1.00 per share. Authorized 54,000,000 shares; issued and outstanding 10,703,309 at July 31, 2011 and 8,928,309 at April 30, 2011	10,703,309	8,928,309
Additional paid-in capital	9,992,856	8,621,729
Accumulated deficit	(11,022,835)	(10,168,878)
Total stockholders' equity	9,673,330	7,381,160
Total liabilities and stockholders' equity	$ 15,037,742	$ 14,820,123