Description of Business, Basis of Presentation and Recent Accounting Pronouncements (Details Textual) (USD $)					3 Months Ended
	May 03, 2013	Jan. 31, 2013	May 07, 2013 Merger Agreement [Member]	Jun. 05, 2013 Merger Agreement [Member] Subsequent Event [Member]	May 03, 2013 Multiple Milestones [Member]
Revenue Recognition, Milestone Method, Revenue Recognized					$ 0
Common stock, par value (in dollars per share)	$ 0.4	$ 0.4	$ 0.40
Common stock, shares outstanding	4,020,334	3,966,485		3,553,830
Common Stock Share Outstanding Percentage As On Offer Expiry Date				88.40%
Common Stock Share Outstanding Pursuant To Guaranteed Delivery				17,711
Share Price			$ 7.75