Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
A reconciliation between basic and diluted earnings per share computations
Loss available to common stockholders	$ (2,611)	$ (3,385)	$ (4,823)	$ (8,303)
Net income (loss) available to common stockholders (in shares)	25,568	21,215	25,554	21,212
Net income (loss) available to common stockholders (in dollars per share)	$ (0.10)	$ (0.16)	$ (0.19)	$ (0.39)
Stock options, Effect of dilutive securities	$ 0	$ 0		$ 0
Stock options, effect of dilutive securities, (in shares)	0	0		0
Attributable to participating securities	$ 0	$ 0		$ 0
Restricted stock, effect of dilutive securities (in shares)	0	0	0	0
DILUTED EPS, Income (Loss)	$ (2,611)	$ (3,385)	$ (4,823)	$ (8,303)
DILUTED EPS (in shares)	25,568	21,215	25,554	21,212
DILUTED EPS (in dollars per share)	$ (0.10)	$ (0.16)	$ (0.19)	$ (0.39)