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8. Leases (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Operating Lease, Rent Expense     $ 51,185 $ 48,990
Operating Leases, Rent Expense, Minimum Rentals $ 55,321 $ 53,253