STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Common Stock [Member]	Retained Earnings [Member]	Total
Balances at Dec. 31, 2009	$ 1,515,945	$ 6,856,758	$ 8,372,703
Balances (in shares) at Dec. 31, 2009	4,677,728
Severance award agreement	113,500		113,500
Stock based compensation	9,783		9,783
Net income		245,863	245,863
Balances at Dec. 31, 2010	1,639,228	7,102,621	8,741,849
Balances (in shares) at Dec. 31, 2010	4,677,728
Stock based compensation	43,743		43,743
Shares issued on exercise of options (in shares)	6,125
Net income		1,095,197	1,095,197
Balances at Dec. 31, 2011	1,682,971	8,197,818	9,880,789
Balances (in shares) at Dec. 31, 2011	4,683,853
Shares issued on exercise of options (in shares)	4,232
Net income		777,545	777,545
Balances at Dec. 31, 2012	$ 1,682,971	$ 8,975,363	$ 10,658,334
Balances (in shares) at Dec. 31, 2012	4,688,085