Organization and Summary of Significant Accounting Policies (Concentration of Credit and Investment Risk) (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) customer shares	Dec. 31, 2014 USD ($) customer shares	Dec. 31, 2013 USD ($) customer shares
Accounting Policies [Abstract]
Concentration risk, percentage	10.00%
Accounts Receivable, Number of Customers that Individually Accounted for more than Ten Percent | customer	0	0	0
Significant Credit Losses, Amount | $	$ 0	$ 0	$ 0
Antidilutive securities excluded from computation of earnings per share (shares) | shares	44,350	0	0