Condensed Consolidated Statements of Stockholders’ Equity (Current Period Unaudited) (USD $)	Preferred Stock [Member]	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member] Stock Options [Member]	Additional Paid-in Capital [Member] Restricted Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Stock Options [Member]	Restricted Stock [Member]	Total
Balance, December 31, 2012 (Audited) at Dec. 31, 2012	$ 500,000	$ 1,517,000	$ 446,000			$ 47,409,000	$ (43,445,000)			$ 6,427,000
Balance, December 31, 2012 (Audited) (in Shares) at Dec. 31, 2012	50	1,550	42,705,032
Stock based compensation expense				52,000	5,000			52,000	5,000	57,000
Stock warrants exercised			5,000			231,000				236,000
Stock warrants exercised (in Shares)			427,713
Costs related to stock issuance						(42,000)				(42,000)
Net loss							(257,000)			(257,000)
Balance, March 31, 2013 (Unaudited) at Mar. 31, 2013	$ 500,000	$ 1,517,000	$ 451,000			$ 47,655,000	$ (43,702,000)			$ 6,421,000
Balance, March 31, 2013 (Unaudited) (in Shares) at Mar. 31, 2013	50	1,550	43,132,745