Stockholders' Equity (Details Textual) - USD ($)				1 Months Ended				12 Months Ended
	Aug. 10, 2015	Oct. 10, 2014	Dec. 11, 2013	Aug. 31, 2015	Aug. 29, 2015	Aug. 10, 2015	Jul. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders Equity [Line Items]
Proceeds from Stock Options Exercised									$ 4,000	$ 231,000
Stock Issued During Period, Value, New Issues								$ 42,643,000	$ 11,647,000	$ 12,193,000
Channel Collaboration Agreement [Member]
Stockholders Equity [Line Items]
Shares, Issued	937,500					937,500
Stock Issued	$ 3,000,000					$ 3,000,000
Stock Purchase Agreement [Member]
Stockholders Equity [Line Items]
Conversion of Stock, Shares Converted					1,350,000
Conversion of Stock, Shares Issued				1,350,000	1,350,000
Employee Stock Option [Member]
Stockholders Equity [Line Items]
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercises In Period								35,008	6,583	291,667
Proceeds from Stock Options Exercised								$ 41,000
Prev Abr Llc [Member]
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, New Issues								655,321
Equity Issued in Business Combination, Fair Value Disclosure								$ 1,350,000
Cedars-Sinai Medical Center [Member]
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, Acquisitions										334,911
Equity Issued in Business Combination, Fair Value Disclosure										$ 425,000
Sale of Stock for Channel Agreement Price, Per Share										$ 1.27
Warrant [Member]
Stockholders Equity [Line Items]
Stock Issued During Period Shares Cash less Warrant Exercises									232,619
IPO [Member]
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, New Issues		14,059,616
Common Stock, Closing Price, Per Share		$ 1.47
Noninterest Expense Offering Cost		$ 1,600,000
Proceeds from Issuance Initial Public Offering		20,700,000
Proceeds from Issuance or Sale of Equity		$ 19,100,000
Private Placement [Member]
Stockholders Equity [Line Items]
Stock Issued During Period, Shares, New Issues			13,225,000				15,333,333
Common Stock, Closing Price, Per Share			$ 1.00
Noninterest Expense Offering Cost			$ 1,000,000				$ 3,400,000
Proceeds from Issuance Initial Public Offering			$ 13,200,000				42,600,000
Gross Proceeds From Issuance Initial Public Offering							46,000,000
Stock Issued During Period, Value, New Issues							$ 2,000,000
Shares Issued, Price Per Share							$ 3.00