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5. Segment and Geographic Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales, amount | $ 3,367,838 | $ 3,404,026 | $ 9,019,582 | $ 9,191,073 | $ 11,901,339 | $ 11,241,164
Net sales, % of total | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00%
North America |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales, amount | $ 3,295,501 | $ 3,325,678 | $ 8,843,983 | $ 8,922,604 |  |
Net sales, % of total | 98.00% | 98.00% | 98.00% | 97.00% |  |
Outside North America [Member] |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales, amount | $ 72,337 | $ 78,348 | $ 175,599 | $ 268,469 |  |
Net sales, % of total | 2.00% | 2.00% | 2.00% | 3.00% |  |
United States |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales, amount |  |  |  |  | $ 11,563,956 | $ 10,541,921
Net sales, % of total |  |  |  |  | 97.00% | 94.00%
Outside United States |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |  |  |
Net sales, amount |  |  |  |  | $ 337,383 | $ 699,243
Net sales, % of total |  |  |  |  | 3.00% | 6.00%

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