Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 361,867	$ 506,903
Accounts receivable (see Note 3)	2,199,359	2,332,019
Inventories (see Note 4)	3,361,760	2,890,511
Prepaid expenses	127,009	135,361
Total current assets	6,049,995	5,864,794
Property, equipment and leaseholds, net (see Note 5)	7,185,730	8,205,514
Patents (see Note 6)	200,512	208,206
Long term deposits (see Note 7)	7,893	7,733
Deferred tax asset (see Note 10)	292,111	219,000
Total Assets	13,736,241	14,505,247
Liabilities
Accounts payable and accrued liabilities	677,969	514,890
Deferred revenue	312,556	312,392
Income taxes payable	45,998	437,998
Short term line of credit (Note 8)	1,205,000	650,000
Current portion of long term debt (see Note 9)	318,644	329,389
Total current liabilities	2,560,167	2,244,669
Long term debt (see Note 9)	1,407,406	1,647,603
Total liabilities	3,967,573	3,892,272
Stockholders' Equity
Capital stock (see Note 13) Authorized 50,000,000 common shares with a par value of $0.001 each 1,000,000 preferred shares with a par value of $0.01 each Issued and outstanding: 13,169,991 (2011: 13,169,991) common shares	13,170	13,170
Capital in excess of par value	16,006,798	15,864,348
Other comprehensive income	574,829	477,139
Accumulated Deficit	(6,826,129)	(5,741,682)
Total Stockholders' Equity	9,768,668	10,612,975
Total Liabilities and Stockholders' Equity	$ 13,736,241	$ 14,505,247