CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) shares
Issuance of stock (in shares)	2,015,500
Stock issuance expenses | $	$ 575
Number of options exercised (in shares)	(18,800)
Series B Preferred Stock [Member]
Redemption of preferred stock (in shares)	23,393