CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Feb. 29, 2016	May. 31, 2015
Current Assets:
Cash and cash equivalents	$ 859,145	$ 1,088,307
Accounts receivable, less allowance for doubtful accounts of $8,456 and $17,468 as of February 29, 2016 and May 31, 2015, respectively	919,944	1,111,570
Inventories, net	2,100,101	2,027,372
Prepaid expenses and other	102,083	164,352
Total current assets	3,981,273	4,391,601
Property and Equipment, net of accumulated depreciation and amortization of $1,384,847 and $1,267,617 as of February 29, 2016 and May 31, 2015, respectively	398,154	445,386
Deferred Tax Assets	998,000	744,000
Investments	165,324	165,324
Intangible Assets, net	264,905	321,304
Other Assets	68,286	56,838
Total Assets	5,875,942	6,124,453
Current Liabilities:
Accounts payable and accrued expenses	327,007	392,139
Accrued compensation	159,834	131,794
Total current liabilities	$ 486,841	$ 523,933
Commitments and Contingencies (Note 5)
Shareholders' Equity:
Preferred stock, no par value authorized 5,000,000 shares, none issued and none outstanding at February 29, 2016 and May 31, 2015
Common stock, $0.08 par value authorized 25,000,000 shares, issued and outstanding 7,659,339 and 7,566,714 at February 29, 2016 and May 31, 2015, respectively	$ 612,746	$ 605,336
Additional paid-in-capital	18,383,605	18,326,890
Accumulated other comprehensive loss	(13,703)	(12,264)
Accumulated deficit	(13,593,547)	(13,319,442)
Total Shareholders' Equity	5,389,101	5,600,520
Total Liabilities and Shareholders' Equity	$ 5,875,942	$ 6,124,453

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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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.