CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
CONDENSED CONSOLIDATED BALANCE SHEETS
Preferred stock, par value (in dollars per share)	$ 0.00	$ 0.00
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, dividend rate (as a percent)	6.00%	6.00%
Preferred stock, stated value (in dollars per share)	$ 1,000	$ 1,000
Preferred stock, shares issued	0	3,526
Preferred stock, shares outstanding	0	3,526
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	35,857,321	29,814,040
Common stock, shares outstanding	35,857,321	29,814,040