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14. Geographical Information (Details-Revenue) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Geographical information |  |
Revenue | $ 26,046,000 us-gaap_Revenues | $ 23,749,000 us-gaap_Revenues
UNITED STATES |  |
Geographical information |  |
Revenue | 24,917,000 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US | 22,480,000 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US
CANADA |  |
Geographical information |  |
Revenue | $ 1,129,000 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA | $ 1,269,000 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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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