COMMITMENTS AND CONTINGENCIES (Q3) (Textuals) (Details) $ in Thousands	1 Months Ended	9 Months Ended
Apr. 30, 2016 USD ($) ft²	Mar. 31, 2017 USD ($) ft²
Commitments and Contingencies Disclosure [Abstract]
Area of new premises (in square feet) \| ft²	17,689	5,362
Rent expense under operating leases	$ 32	$ 11
Straight-lined rent expense	$ 38	$ 11

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration