5. Segment and Geographic Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales, amount	$ 2,592,295	$ 2,640,702	$ 5,651,744	$ 5,787,047
Net sales, % of total	100.00%	100.00%	100.00%	100.00%
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales, amount	$ 2,539,986	$ 2,521,144	$ 5,548,482	$ 5,596,925
Net sales, % of total	98.00%	95.00%	98.00%	97.00%
Outside North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales, amount	$ 52,309	$ 119,558	$ 103,262	$ 190,122
Net sales, % of total	2.00%	5.00%	2.00%	3.00%