Statement of Changes in Stockholders' Equity (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2010	$ 78,222	$ 64,225,865	$ 11,465	$ (60,419,109)	$ 0	$ 3,896,443
Balance (in shares) at Dec. 31, 2010	7,822,314
Stock-based compensation	2,065	66,686	0	0	0	68,751
Stock-based compensation (in shares)	206,464
Comprehensive gain (loss)
Net income (loss)	0	0	0	(262,751)	(262,751)	(262,751)
Other comprehensive income (loss)
Net unrealized gain (loss) on investments in securities	0	0	(36,491)	0	(36,491)	(36,491)
Comprehensive gain (loss)	0	0	0	0	(299,242)	(299,242)
Balance at Dec. 31, 2011	80,287	64,292,551	(25,026)	(60,681,860)	0	3,665,952
Balance (in shares) at Dec. 31, 2011	8,028,778
Stock-based compensation	2,893	59,607	0	0	0	62,500
Stock-based compensation (in shares)	289,294
Dividends				(1,803,808)		(1,803,808)
Comprehensive gain (loss)
Net income (loss)	0	0	0	568,366	568,366	568,366
Other comprehensive income (loss)
Net unrealized gain (loss) on investments in securities	0	0	21,860	0	21,860	21,860
Comprehensive gain (loss)	0	0	0	0	590,226	590,226
Balance at Dec. 31, 2012	$ 83,180	$ 64,352,158	$ (3,166)	$ (61,917,302)	$ 0	$ 2,514,870
Balance (in shares) at Dec. 31, 2012	8,318,072