Summary of Significant Accounting Policies - Income per common share (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Accounting Policies [Abstract]
Net (loss) income	$ (74,340)	$ (39,580)	$ 763	$ (63,217)	$ 95,375	$ 50,961	$ 79,272	$ 104,385	$ (176,374)	$ 329,993	$ 155,696
Weighted average common shares outstanding - basic									2,036,959	2,028,014	1,947,605
Effect of the assumed exercise of dilutive stock options										8,227	15,051
Weighted average common shares outstanding - dilutive									2,036,959	2,036,241	1,962,656
(Loss) income per common share: Basic	$ (0.04)	$ (0.02)	$ 0	$ (0.03)	$ 0.04	$ 0.03	$ 0.04	$ 0.05	$ (0.09)	$ 0.16	$ 0.08
(Loss) income per common share: Diluted	$ (0.04)	$ (0.02)	$ 0	$ (0.03)	$ 0.04	$ 0.03	$ 0.04	$ 0.05	$ (0.09)	$ 0.16	$ 0.08