Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Cash flows from operating activities:
Net earnings (loss)	$ (72,938)	$ 143,334
Adjustment for non-cash items:
Depreciation and amortization	139,358	127,300
Stock-based compensation	8,928	10,369
Deferred income taxes	39,000	38,500
Change in operating assets and liabilities:
Accounts receivable	(542,776)	(71,598)
Inventories	674,613	604,199
Prepaid expenses and other current assets	(298,783)	(142,819)
Other assets	(23,442)	(27,120)
Accounts payable and accrued liabilities	(767,714)	(63,184)
Deferred revenue	(339,077)	704,852
Net cash provided by operating activities	(1,182,831)	1,323,833
Cash flows from investing activities:
Purchase of property and equipment	(16,709)	(33,413)
Net cash used in investing activities	(16,709)	(33,413)
Cash flows from financing activities:
Payments of long-term obligations	(44,204)	(40,918)
Net cash used in financing activities	(44,204)	(40,918)
Effect of exchange rate changes on cash flows	(29,961)	(21,924)
Net increase (decrease) in cash and cash equivalents	(1,273,705)	1,227,578
Cash and cash equivalents, beginning of period	3,858,544	4,220,152
Cash and cash equivalents, end of period	$ 2,584,839	$ 5,447,730

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents. Includes cash and cash equivalents associated with the entity's continuing operations. Excludes cash and cash equivalents associated with the disposal group (and discontinued operation).