Stockholders Equity (Details Textual) (USD $)	0 Months Ended			6 Months Ended										3 Months Ended		6 Months Ended
	Apr. 02, 2014	Apr. 30, 2013	Apr. 11, 2013	Jun. 30, 2014	Jun. 30, 2013	Apr. 02, 2014	Feb. 19, 2014	Dec. 31, 2013	Feb. 12, 2013	Apr. 02, 2014 Series B Preferred Stock [Member]	Feb. 19, 2014 Series B Preferred Stock [Member]	Dec. 31, 2013 Series B Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]	Jun. 30, 2014 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Jun. 30, 2013 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Jun. 30, 2014 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Jun. 30, 2013 Second Amended And Restated 2005 Equity Incentive Plan [Member]	Apr. 02, 2014 Basic Subscription Rights [Member]	Apr. 02, 2014 Over Subscription Rights [Member]	Apr. 02, 2014 Kien Huat [Member] Basic Subscription Rights [Member]
Schedule of Stockholders Equity (Textual) [Abstract]
Stock-based compensation expense														$ 136,000	$ 70,000	$ 284,000	$ 150,000
Total unrecognized compensation														383,000		383,000
Common stock dividends on series B preferred stock shares authorized							30,833		75,530
Common stock dividends, declared and undeclared, value											218,000
Dividends undeclared												218,000	167,000
Common stock, shares issued			6,032,153	39,372,000		2,138,881		36,495,000										453,165	173,087	1,512,629
Payments of stock issuance costs		223,000
Subscription price						6.25				6.25
Number of shares for which one right is issued										15
Proceeds from right issue	13,400,000		11,400,000
Proceeds from rights issue, net	$ 13,200,000			$ 13,237,000	$ 11,178,000