Earnings (Loss) Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Net loss attributable to common stockholders—basic	$ (1,403)	$ (5,445)	$ (5,786)	$ (17,019)
Net loss attributable to nonvested restricted stockholders	(12)	(56)	(49)	(176)
Net loss	$ (1,415)	$ (5,501)	$ (5,835)	$ (17,195)
Weighted average shares outstanding—basic	15,600,040	15,592,291	15,540,697	15,448,622
Effect of dilutive securities [Abstract]
Shares issuable under stock options	0	0	0	0
Weighted average shares outstanding—diluted	15,600,040	15,592,291	15,540,697	15,448,622
Net loss per common share—basic and diluted (US$ per share)	$ (0.09)	$ (0.35)	$ (0.38)	$ (1.11)