4. Inventory - Inventory (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 362,962us-gaap_InventoryRawMaterials	$ 420,424us-gaap_InventoryRawMaterials
Less: Reserve	(113,681)us-gaap_InventoryValuationReserves	(171,762)us-gaap_InventoryValuationReserves
Inventory, Net	$ 249,281us-gaap_InventoryNet	$ 248,662us-gaap_InventoryNet

Amount of valuation reserve for inventory.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant