Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

BUSINESS DESCRIPTION (Details) - USD ($) $ in Millions	Jun. 06, 2016	Jun. 06, 2016	May 24, 2016	Jun. 30, 2017	Dec. 31, 2016
Common Stock, Shares, Issued				19,087,409	15,483,499
Proceeds from the IPO	$ 71.5
IPO
Common Stock, Shares, Issued			3,044,252
Proceeds from the IPO			$ 67.0
Over-Allotment Option [Member]
Common Stock, Shares, Issued	545,813	545,813
Proceeds from the IPO		$ 12.0