Consolidated Statement of Stockholders' Equity (USD $)	Convertible redeemable preferred stock	Common stock	Additional paid-in-capital	Accumulated deficit	Treasury Stock	Total
Stockholders' Equity at Dec. 31, 2011
Stock Issued During the Period, Value, Stock Options Excercised			$ 66,000			$ 66,000
Cash dividends: preferred stock			(300,000)			(300,000)
Stock based compensation expense			242,000			242,000
Comprehensive income (loss)				(319,000)		(319,000)
Stockholders' Equity at Dec. 31, 2012	8,000	36,000	31,056,000	(25,743,000)	(208,000)	5,149,000
Cash dividends: preferred stock			(75,000)			(75,000)
Stock based compensation expense			27,000			27,000
Comprehensive income (loss)				(1,082,000)		(1,082,000)
Stockholders' Equity at Mar. 31, 2013	$ 8,000	$ 36,000	$ 31,008,000	$ (26,825,000)	$ (208,000)	$ 4,019,000