CONSOLIDATED CONDENSED STATEMENT OF SHAREHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2011	$ 29,155,000	$ 3,956,000	$ 10,919,000	$ 172,350,000	$ (2,955,000)
Balance (in shares) at Dec. 31, 2011		3,956,000			(342,000)
Net income	5,069,000	0	0	5,069,000	0
Exercise of stock options	304,000	52,000	252,000	0	0
Exercise of stock options (in shares)	52,000	52,000			0
Stock-based compensation	139,000	0	139,000	0	0
Balance at Sep. 30, 2012	$ 34,667,000	$ 4,008,000	$ 11,310,000	$ 22,304,000	$ (2,955,000)
Balance (in shares) at Sep. 30, 2012		4,008,000			(342,000)