Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2013	Mar. 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Earnings Per Share [Abstract]
Net loss attributable to comon stockholders - basic													$ (8,401)	$ (26,274)	$ (51,631)
Net loss attributable to nonvested restricted stockholders													(61)	(302)	(402)
Net loss	$ (2,978)	$ (1,306)	$ (7,157)	$ 2,979	$ (10,272)	$ (5,211)	$ (3,813)	$ (7,280)	$ (4,178)	$ (11,093)	$ (5,484)	$ (16,304)	$ (8,462)	$ (26,576)	$ (52,033)	$ (25,359)
Weighted average shares outstanding - basic													15,604,452	15,492,314	15,066,663
Shares issuable under stock options													0	0	0
Weighted average shares outstanding - diluted													15,604,452	15,492,314	15,066,663
Net loss per common share - basic and diluted, in dollars per share	$ (0.19)	$ (0.08)	$ (0.46)	$ 0.19	$ (0.65)	$ (0.33)	$ (0.25)	$ (0.48)	$ (0.27)	$ (0.73)	$ (0.35)	$ (1.06)	$ (0.54)	$ (1.72)	$ (3.45)	$ (1.71)