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15. Geographical Information (Details-Revenue) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Geographical information |  |
Revenue | $ 23,749,000 | $ 24,064,000
UNITED STATES |  |
Geographical information |  |
Revenue | 22,480,000 | 22,551,000
CANADA |  |
Geographical information |  |
Revenue | $ 1,269,000 | $ 1,513,000

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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