STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2010	$ 6,912	$ 33,272,237	$ 12,417,924	$ (981,226)	$ (45,404)	$ 44,670,443
Balance (in shares) at Dec. 31, 2010	6,911,570
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net Income	0	0	1,368,050	0	0	1,368,050
Change in unrealized loss from interest rate swap	0	0	0	0	7,736	7,736
Common stock issued upon exercise of options	35	278,215	0	0	0	278,250
Common stock issued upon exercise of options (in shares)	35,000
Common stock issued as employee compensation	0	0	0	0	0	0
Common stock issued as employee compensation (in shares)	0
Stock compensation expense	0	286,806	0	0	0	286,806
Treasury stock acquired	0	0	0	(159,000)	0	(159,000)
Balance at Mar. 31, 2011	6,947	33,837,258	13,785,974	(1,140,226)	(37,668)	46,452,285
Balance (in shares) at Mar. 31, 2011	6,946,570
Balance at Dec. 31, 2011	7,080	35,346,273	19,834,852	(1,140,226)	(21,772)	54,026,207
Balance (in shares) at Dec. 31, 2011	7,079,638
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Net Income	0	0	1,919,320	0	0	1,919,320
Change in unrealized loss from interest rate swap	0	0	0	0	(25,278)	(25,278)
Common stock issued in share offering	46	240,969	0	0	0	241,015
Common stock issued in share offering (in shares)	46,078
Common stock issued upon exercise of options	15	228,274	0	0	0	228,290
Common stock issued upon exercise of options (in shares)	15,260
Common stock issued as employee compensation	0	0	0	0	0	0
Common stock issued as employee compensation (in shares)					0
Stock compensation expense	0	382,657	0	0	0	382,657
Treasury stock retired	(133)	(1,140,093)	0	1,140,226	0	0
Treasury stock retired (in shares)	(133,257)
Balance at Mar. 31, 2012	$ 7,008	$ 35,058,081	$ 21,754,172	$ 0	$ (47,050)	$ 56,772,211
Balance (in shares) at Mar. 31, 2012	7,007,719