Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Common Stock [Member]	Paid In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss), Net Of Tax [Member]	Total
Balance at Dec. 31, 2011	$ 6,509,267	$ 2,032,516	$ (7,606,974)	$ 34,431,296	$ (8,948)	$ 35,357,157
Balance, treasury stock, shares at Dec. 31, 2011			864,459
Balance, shares outstanding at Dec. 31, 2011	16,409,317
Balance, shares issued at Dec. 31, 2011	17,273,776
Redemption of stock, shares	(18,900)		18,900
Redemption of stock	0	0	(176,606)	0	0	(176,606)
Other comprehensive income (loss):
Unrealized gains on securities, net of taxes	0	0	0	0	39,162	39,162
Net income	0	0	0	1,094,989	0	1,094,989
Dividends ($.07) per share	0	0	0	0	0	0
Balance at Mar. 31, 2012	6,509,267	2,032,516	(7,783,580)	35,526,285	30,214	36,314,702
Balance, treasury stock, shares at Mar. 31, 2012			883,359
Balance, shares issued at Mar. 31, 2012	17,273,776					17,273,776
Balance, shares outstanding at Mar. 31, 2012	16,390,417					16,390,417
Balance at Dec. 31, 2011	6,509,267	2,032,516	(7,606,974)	34,431,296	(8,948)	35,357,157
Balance, treasury stock, shares at Dec. 31, 2011			864,459
Balance, shares outstanding at Dec. 31, 2011	16,409,317
Balance, shares issued at Dec. 31, 2011	17,273,776
Redemption of stock, shares	(63,300)		63,300
Redemption of stock	0	0	(580,708)	0	0	(580,708)
Other comprehensive income (loss):
Unrealized gains on securities, net of taxes	0	0	0	0	62,539	62,539
Net income	0	0	0	5,619,798	0	5,619,798
Dividends ($.07) per share	0	0	0	(1,146,317)	0	(1,146,317)
Balance at Dec. 31, 2012	6,509,267	2,032,516	(8,187,682)	38,904,777	53,591	39,312,469
Balance, treasury stock, shares at Dec. 31, 2012			927,759
Balance, shares issued at Dec. 31, 2012	17,273,776					17,273,776
Balance, shares outstanding at Dec. 31, 2012	16,346,017					16,346,017
Redemption of stock, shares	0
Redemption of stock	0	0		0	0	0
Other comprehensive income (loss):
Unrealized gains on securities, net of taxes	0	0	0	0	15,185	15,185
Net income	0	0	0	2,365,639	0	2,365,639
Dividends ($.07) per share	0	0	0	0	0	0
Balance at Mar. 31, 2013	$ 6,509,267	$ 2,032,516	$ (8,187,682)	$ 41,270,416	$ 68,776	$ 41,693,293
Balance, treasury stock, shares at Mar. 31, 2013			927,759
Balance, shares issued at Mar. 31, 2013	17,273,776					17,273,776
Balance, shares outstanding at Mar. 31, 2013	16,346,017					16,346,017