BANK INDEBTEDNESS (Details) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2012 Second Amended and Restated Credit Agreement [Member] USD ($)	Jun. 30, 2012 Second Amended and Restated Credit Agreement [Member] CAD	Mar. 31, 2012 Second Amended and Restated Credit Agreement [Member] USD ($)	Mar. 31, 2012 Second Amended and Restated Credit Agreement [Member] CAD	Jun. 28, 2011 Second Amended and Restated Credit Agreement [Member]	Jun. 30, 2012 Canadian Prime Rate [Member] Second Amended and Restated Credit Agreement [Member]	Jun. 30, 2012 Canadian 30 Day BA Rate [Member] Second Amended and Restated Credit Agreement [Member]	Jun. 30, 2012 US Base Rate [Member] Second Amended and Restated Credit Agreement [Member]	Jun. 30, 2012 LIBOR [Member] Second Amended and Restated Credit Agreement [Member]
Line of Credit Facility [Line Items]
Authorized amount of line of credit		$ 13,500	13,500
Amount of line of credit being utilized		13,000	11,000	0	0
Amount of letters of credit maintained			1,425		500
Basis spread on variable rate							3.50%	4.50%	3.50%	4.50%
Measurement period of variable rate								30 days
Increase in basis spread on variable rate						0.75%
Collateral, percent of receivables eligible for collateral if not aged over 90 days		85.00%	85.00%
Collateral, minimum age of receivables eligible for collateral	90 days
Collateral, receivables eligible for collateral if not aged over 90 days, percent limitation per one customer		20.00%	20.00%