Commitments and Contingencies (Details Textual) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 21, 2015 USD ($)	Aug. 31, 2013 a	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Dec. 31, 2013 a	Dec. 31, 2014 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Legal Contingency Paid Value	$ 42,500
Rent expense			$ 70	$ 40	$ 100	$ 80
City National Bank [Member]
Commitments and Contingencies Disclosure [Line Items]
Letters of Credit Outstanding, Amount								$ 100
San Francisco, California [Member]
Commitments and Contingencies Disclosure [Line Items]
Land Subject to Office Space | a							2,341
Lease Expiration Date		Aug. 31, 2018
Lease Term		5 years
Los Angeles, California [Member]
Commitments and Contingencies Disclosure [Line Items]
Land Subject to Office Space | a		4,803
Lease Expiration Date							Aug. 31, 2015