CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Aug. 31, 2016	May 31, 2016
Current Assets:
Cash and cash equivalents	$ 1,817,019	$ 1,888,925
Accounts receivable, less allowance for doubtful accounts of $8,213 and $8,405 as of August 31, 2016 and May 31, 2016, respectively	969,016	969,474
Inventories, net	1,850,451	1,863,091
Prepaid expenses and other	132,186	113,578
Total Current Assets	4,768,672	4,835,068
Property and Equipment, net of accumulated depreciation and amortization of $1,460,871 and $1,423,900	343,688	380,659
Deferred Tax Assets	41,000	41,000
Investments	165,324	165,324
Intangible Assets, net	232,794	248,801
Other Assets	58,695	55,653
Total Assets	5,610,173	5,726,505
Current Liabilities:
Accounts payable and accrued expenses	263,177	333,485
Accrued compensation	181,737	172,542
Total Current Liabilities	444,914	506,027
Commitments and Contingencies (Note 6)
Shareholders' Equity:
Preferred stock, no par value authorized 5,000,000 shares, none issued and none outstanding at August 31, 2016 and May 31, 2016
Common stock, $0.08 par value authorized 25,000,000 shares, Issued and outstanding 8,169,673 at August 31, 2016 and May 31, 2016	653,573	653,573
Additional paid-in-capital	19,399,892	19,399,720
Accumulated other comprehensive loss	(13,560)	(13,586)
Accumulated deficit	(14,874,646)	(14,819,229)
Total Shareholders' Equity	5,165,259	5,220,478
Total Liabilities and Shareholders' Equity	$ 5,610,173	$ 5,726,505

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.