BANK INDEBTEDNESS	6 Months Ended
Sep. 30, 2012
Line of Credit Facility [Abstract]
BANK INDEBTEDNESS	BANK INDEBTEDNESS As discussed in detail in Note 14, on August 30, 2012, Lower Lakes, Lower Lakes Transportation, Grand River and Black Creek, as borrowers, and Rand LL Holdings, Rand Finance, Black Creek Holdings and the Company, as guarantors, entered into a Third Amended and Restated Credit Agreement (the “Third Amended and Restated Credit Agreement”) with General Electric Capital Corporation, as agent and lender, and certain other lenders, which amends and restates the Second Amended and Restated Credit Agreement (the “Second Amended and Restated Credit Agreement”) entered on September 28, 2011, as the same was amended from time to time. As of September 30, 2012 and March 31, 2012, the Company had authorized operating lines of credit under the Third Amended and Restated Credit Agreement and the Second Amended Restated Credit Agreement, respectively, in the amounts of CDN $13,500 and US $13,500, and was utilizing CDN $6,000 as of September 30, 2012 and $Nil as of March 31, 2012 and US $6,000 as of September 30, 2012 and $Nil as of March 31, 2012, and maintained letters of credit of CDN $100 as of September 30, 2012 and CDN $500 as of March 31, 2012. The Third Amended and Restated Credit Agreement provides that the line of credit bears interest, at the borrowers' option, at Canadian Prime Rate plus 3.75% or Canadian 30 day BA rate plus 4.75% on Canadian Dollar borrowings, and the U.S. Base rate plus 3.75% or LIBOR plus 4.75% on U.S. Dollar borrowings , compared to a Canadian Prime Rate plus 3.5% or Canadian 30 day BA rate plus 4.5% on Canadian Dollar borrowings, and a U.S. Base rate plus 3.5% or LIBOR plus 4.5% on U.S. Dollar borrowings as of March 31, 2012 under the Second Amended and Restated Credit Agreement, and is subject to the terms and conditions described in Note 14. Available collateral for borrowings and letters of credit are based on eligible accounts receivable, which are limited to 85% of those receivables that are not over 90 days old, not in excess of 30% for one customer in each line and certain other standard limitations. As of September 30, 2012, the Company had credit availability of US $7,289 on the combined lines of credit.

BANK INDEBTEDNESS

As discussed in detail in Note 14, on August 30, 2012, Lower Lakes, Lower Lakes Transportation, Grand River and Black Creek, as borrowers, and Rand LL Holdings, Rand Finance, Black Creek Holdings and the Company, as guarantors, entered into a Third Amended and Restated Credit Agreement (the “Third Amended and Restated Credit Agreement”) with General Electric Capital Corporation, as agent and lender, and certain other lenders, which amends and restates the Second Amended and Restated Credit Agreement (the “Second Amended and Restated Credit Agreement”) entered on September 28, 2011, as the same was amended from time to time. As of September 30, 2012 and March 31, 2012, the Company had authorized operating lines of credit under the Third Amended and Restated Credit Agreement and the Second Amended Restated Credit Agreement, respectively, in the amounts of CDN $13,500 and US $13,500, and was utilizing CDN $6,000 as of September 30, 2012 and $Nil as of March 31, 2012 and US $6,000 as of September 30, 2012 and $Nil as of March 31, 2012, and maintained letters of credit of CDN $100 as of September 30, 2012 and CDN $500 as of March 31, 2012.

The Third Amended and Restated Credit Agreement provides that the line of credit bears interest, at the borrowers' option, at Canadian Prime Rate plus 3.75% or Canadian 30 day BA rate plus 4.75% on Canadian Dollar borrowings, and the U.S. Base rate plus 3.75% or LIBOR plus 4.75% on U.S. Dollar borrowings , compared to a Canadian Prime Rate plus 3.5% or Canadian 30 day BA rate plus 4.5% on Canadian Dollar borrowings, and a U.S. Base rate plus 3.5% or LIBOR plus 4.5% on U.S. Dollar borrowings as of March 31, 2012 under the Second Amended and Restated Credit Agreement, and is subject to the terms and conditions described in Note 14. Available collateral for borrowings and letters of credit are based on eligible accounts receivable, which are limited to 85% of those receivables that are not over 90 days old, not in excess of 30% for one customer in each line and certain other standard limitations. As of September 30, 2012, the Company had credit availability of US $7,289 on the combined lines of credit.