3. Earnings per Common Share (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Net income, as reported	$ 1,077,704	$ 1,284,386	$ 2,187,544	$ 2,355,951
Less: dividends to preferred shareholders	20,312	20,312	40,625	40,625
Net income available to common shareholders	$ 1,057,392	$ 1,264,074	$ 2,146,919	$ 2,315,326
Weighted average number of common shares used in calculating earnings per share	4,954,879	4,889,257	4,946,734	4,880,969
Earnings per common share	$ 0.21	$ 0.26	$ 0.43	$ 0.47