Other Income (Expenses) (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Income Net [Line Items]
Other	$ 40,628	$ 0	$ 34,864	$ 94,779
Government Subsides
Other Income Net [Line Items]
Other	80,108	0	80,108	95,128
Other
Other Income Net [Line Items]
Other	$ (39,480)	$ 0	$ (45,244)	$ (349)