CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - $ / shares	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015
Exercise price of warrants (in dollars per share)	$ 5.00	$ 5.00	$ 5.00
Restricted Common Stock [Member]
Common stock, net of costs (in dollars per share)	2.85
$7.00 Common Stock Issuance [Member]
Common stock, net of costs (in dollars per share)	7.00
$6.44 Common Stock Issuance [Member]
Common stock, net of costs (in dollars per share)	$ 6.44
$3.00 Common Stock Issuance [Member]
Common stock, net of costs (in dollars per share)		3.00
$8.00 Common Stock Issuance [Member]
Common stock, net of costs (in dollars per share)		8.00
$5.50 Common Stock Issuance [Member]
Common stock, net of costs (in dollars per share)		$ 5.50