Per Share Data (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Numerator:
Net income (loss) attributable to Company common stockholders	$ 1,607	$ (3,970)	$ 1,687	$ (3,929)
Add: Impact of assumed conversions Interest on convertible debts	231		223
Net income (loss) attributable to common stockholders after assumed conversions	$ 1,838	$ (3,970)	$ 1,910	$ (3,929)
Denominator:
Weighted average number of shares issued, basic	59,252	55,784	59,252	55,217
Weighted average common shares diluted	88,434	55,784	81,787	55,217
Convertible debts	20,700		12,684
Earnings per share:
Basic	$ 0.03	$ (0.07)	$ 0.03	$ (0.07)
Diluted	$ 0.02		$ 0.02
Series C Convertible Preferred Stock [Member]
Denominator:
Effect of dilutive securities	3,300		3,300
Series D Convertible Preferred Stock [Member]
Denominator:
Effect of dilutive securities	5,182		6,551
Stock Options [Member]
Denominator:
Effect of dilutive securities, warrants and options
Warrant [Member]
Denominator:
Effect of dilutive securities, warrants and options