Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net earnings (loss)	$ (297,951)	$ (82,128)
Adjustment for non-cash items:
Depreciation and amortization	441,593	428,710
Stock-based compensation	14,289	28,092
Deferred income taxes and other	(86,349)	147,354
Casualty gain	0	(443,064)
Change in operating assets and liabilities:
Accounts receivable	(131,190)	(300,045)
Inventories	120,317	892,329
Prepaid expenses and other current assets	(616,625)	(310,789)
Other assets	(235,650)	(4,385)
Accounts payable and accrued liabilities	281,655	(457,432)
Deferred revenue	1,085,001	(479,984)
Net cash provided by (used in) operating activities	575,090	(581,342)
Cash flows from investing activities:
Purchase of property and equipment	(11,292)	(805,131)
Insurance proceeds	0	625,247
Net cash used in investing activities	(11,292)	(179,884)
Cash flows from financing activities:
Payments of long-term obligations	(146,075)	(135,060)
Purchase of common stock	(17,824)	0
Net cash used in financing activities	(163,899)	(135,060)
Effect of exchange rate changes on cash flows	35,187	(45,414)
Net increase (decrease) in cash and cash equivalents	435,086	(941,700)
Cash and cash equivalents, beginning of period	3,896,087	3,858,544
Cash and cash equivalents, end of period	$ 4,331,173	$ 2,916,844