CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Nov. 30, 2012		May 31, 2012
Current Assets:
Cash and cash equivalents	$ 1,194,369		$ 1,077,342
Accounts receivable	1,509,664	[1]	1,200,516	[2]
Inventories, net	1,800,104		1,821,072
Prepaid expenses and other	161,287		210,700
Deferred tax assets, current portion	177,000		177,000
Total current assets	4,842,424		4,486,630
Property and Equipment, net of accumulated depreciation and amortization	733,977	[3]	584,824	[4]
Deferred Tax Assets, net of current portion	61,000		61,000
Investments	165,324		165,324
Intangible Assets, net	177,024		194,583
Other Assets	78,561		78,561
Total Assets	6,058,310		5,570,922
Current Liabilities:
Accounts payable and accrued expenses	333,222		362,447
Accrued compensation	212,459		186,841
Line of credit			43,000
Total Current Liabilities	545,681		592,288
Commitments and Contingencies
Shareholders' Equity:
Preferred stock		[5]		[6]
Common stock	557,786	[7]	556,186	[8]
Additional paid-in capital	17,742,206		17,737,807
Accumulated other comprehensive loss	(6,584)		(6,030)
Accumulated deficit	(12,780,779)		(13,309,329)
Total Shareholders' Equity	5,512,629		4,978,634
Total Liabilities and Shareholders' Equity	$ 6,058,310		$ 5,570,922

[1] less allowance for doubtful accounts of $117,401 of November 30, 2012 .

[2] less allowance for doubtful accounts of $113,191 as of May 31, 2012 .

[3] net of accumulated depreciation and amortization of $937,947 as of November 30, 2012 .

[4] net of accumulated depreciation and amortization of $712,176 as of May 31, 2012.

[5] no par value authorized 5,000,000 shares, none issued and none outstanding at November 30, 2012.

[6] no par value authorized 5,000,000 shares, none issued and none outstanding at May 31, 2012.

[7] $0.08 par value authorized 25,000,000 shares, issued and outstanding 6,972,339 at November 30, 2012.

[8] $0.08 par value authorized 25,000,000 shares, issued and outstanding 6,952,339 at May 31, 2012.