Organization and Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of year	$ 132	$ 139	$ 148
Bad debt expense	285	97	50
Write-offs, net of recoveries	(266)	(104)	(59)
Balance at end of year	$ 151	$ 132	$ 139