SHARE CAPITAL (Details 4) (USD $)	2 Months Ended	3 Months Ended		1 Months Ended		4 Months Ended	1 Months Ended				3 Months Ended	12 Months Ended
	Jun. 30, 2011 Stock Options	Jun. 30, 2012 Stock Options	Mar. 31, 2012 Stock Options	Mar. 31, 2006 Stock Options AMI Stock Option Plan	Apr. 30, 2011 Predecessor Company	Apr. 30, 2011 Predecessor Company	Apr. 30, 2011 Predecessor Company AMI Stock Option Plan	Apr. 30, 2011 Predecessor Company 2006 Plan	Apr. 30, 2011 Predecessor Company Stock Options AMI Stock Option Plan	Mar. 31, 2006 Predecessor Company Stock Options AMI Stock Option Plan	Mar. 31, 2011 Predecessor Company Stock Options AMI Stock Option Plan	Dec. 31, 2010 Predecessor Company Stock Options AMI Stock Option Plan
Stock Incentive Plans
Number of stock options granted (in shares)	708,023			304
Number of common shares for each option exercised										3,852
Number of Predecessor Company's common shares reserved in March 2006 to accommodate future exercises of the AMI options										1,171,092
No. of shares underlying options
Balance, beginning of period (in shares)		645,323							300,480		300,480
Forfeited (in shares)									(300,480)
Balance, end of period (in shares)	708,023	645,323	645,323								300,480	300,480
Weighted average exercise price
Balance, beginning of period (in dollars per share)		$ 20.00							$ 15.44		$ 15.44
Forfeited (in dollars per share)									$ 15.44
Balance, end of period (in dollars per share)	$ 20.00	$ 20.00	$ 20.00								$ 15.44	$ 15.44
Weighted average remaining contractual term (years)
Balance, end of period	6 years 10 months 13 days	5 years 10 months 13 days	6 years 2 months 1 day								4 years 11 months 8 days	6 years 2 months 8 days
Aggregate Intinsic Value of AMI Options Outstanding
Outstanding at the end of the period												$ 0
No. of shares underlying nonvested options
Balance, beginning of period (in shares)		316,146							37,599		112,683
Vested (in shares)		(105,382)									(75,124)
Balance, end of period (in shares)	708,023	210,764	316,146						37,599		37,599	112,683
Weighted average grant date fair value
Balance, beginning of period (in dollars per share)		$ 9.62							$ 6.51		$ 6.51
Vested (in dollars per share)		$ 8.42									$ 6.51
Balance, end of period (in dollars per share)	$ 9.40	$ 9.22	$ 9.62						$ 6.51		$ 6.51	$ 6.51
Additional disclosures
Stock based compensation expense resulting from the cancellation of all awards and other rights or entitlements to purchase common shares upon implementation of the Recapitalization Transaction					$ 1,371,000	$ 1,371,000	$ 300,000	$ 1,100,000