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Share-Based Compensation (Details) (USD $)	3 Months Ended				3 Months Ended							6 Months Ended	12 Months Ended
	Mar. 31, 2013 Non-Executive Employee [Member]	Jun. 30, 2013 Stock Options [Member] Executive officers [Member]	Mar. 31, 2012 Stock Options [Member] Executive officers [Member]	Mar. 31, 2013 Stock Options [Member] Executive officers [Member]	Mar. 31, 2013 Stock Options [Member] Directors [Member]	Mar. 31, 2012 Stock Options [Member] Directors [Member]	Mar. 31, 2013 Stock Options [Member] Directors and Executive Officers [Member]	Mar. 31, 2012 Stock Options [Member] Directors and Executive Officers [Member]	Mar. 31, 2013 Stock Options [Member] Non-Executive Employee [Member]	Mar. 31, 2012 Restricted Stock Awards [Member] Executive officers [Member]	Jun. 30, 2013 Performance-Based Restricted Stock Awards [Member]	Jun. 30, 2013 Performance-Based Restricted Stock Awards [Member]	Dec. 31, 2012 Performance-Based Restricted Stock Awards [Member]
Stock Options [Abstract]
Options granted (in shares)							1,897,000	690,000	552,350
Vesting period		4 years	4 years		2 years	2 years			4 years
Options, grant date fair value (in dollars per share)	$ 1.64	$ 1.80	$ 2.10		$ 1.84	$ 1.35			$ 1.92
Exercisable fair value (in dollars per share)				$ 2.74	$ 2.8		$ 1.49
Exercised (in dollars per share)							$ 5.00
Allocated share-based compensation expense							$ 3,235,000	$ 1,373,000	$ 974,000	$ 654,000	$ 90,000	$ 160,000
Restricted Stock Award [Abstract]
Restricted stock issued during period (in shares)										190,000
Performance Based Restricted Stock Awards [Abstract]
Recognized compensation expense related to awards							3,235,000	1,373,000	974,000	654,000	90,000	160,000
Number of shares that continue to vest under grant (in shares)											86,229	86,229
Fair value of shares that continue to vest under grant (in dollars per share)												$ 2.74
Additional compensation expense not yet recognized											$ 236,000	$ 236,000
Performance-Based Restricted Stock Awards [Roll Forward]
Outstanding, Beginning Balance (in shares)												261,300
Granted (in shares)												0	276,375
Vested (in shares)											0	0
Cancelled/forfeited (in shares)												(109,746)
Outstanding, Ending Balance (in shares)											151,554	151,554	261,300
Vested (in shares)											0	0
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding - Weighted Average Grant Date Fair Value (in dollars per share)												$ 3.44
Cancelled/forfeited - Weighted Average Grant Date Fair Value (in dollars per share)												$ 3.44
Outstanding - Weighted Average Grant Date Fair Value (in dollars per share)											$ 3.04	$ 3.04	$ 3.44

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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