Property and Equipment (Detail) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Property, equipment, and leasehold improvements, at cost:
Equipment	$ 13,754	$ 13,754
Machinery and equipment	2,948,771	2,611,933
Purchased software	145,623	129,753
Furniture and fixtures	13,090	13,090
Subtotal - property and equipment, at cost	3,121,238	2,768,530
Less accumulated depreciation	(835,882)	(763,315)
Net property and leasehold improvements	$ 2,285,356	$ 2,005,215