Shareholders' Equity - Narrative (Details) - USD ($)		1 Months Ended	9 Months Ended
	Feb. 20, 2015	Aug. 31, 2010	Dec. 31, 2015	Dec. 31, 2014	Feb. 15, 2009
Stockholders' Equity Note [Abstract]
Underwritten public offering (shares)	5,460,000
Offering price (usd per share)	$ 3.50
Proceeds from issuance of common stock, net of offering costs	$ 17,500,000		$ (1,000)	$ 0
Number of common stock called by each right (shares)					1
Right issue share price (usd per share)					$ 30.00
Minimum subscription percentage			20.00%
Number of business days			10 days
Share acquisition percentage			50.00%
Prior to a person becoming an Acquiring Person, the Board of Directors of the Company's redemption Rate on per Right Shares			$ 0.001
Employee stock purchase plan authorized		2,500,000
Maximum amount limit for ESPP per employee		$ 20,000
Purchase price to market price matching percentage		100.00%
Sec 16 Officers limit percentage on ESPP based on annual income		20.00%
Sec 16 officers maximum limit on ESPP in amounts		$ 250,000
Interest loans charged period (years)		10 years