7. RETIREMENT PLAN (Details Narrative) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2012
Retirement Plan Details Narrative
Retirement Plan Expenses Incurred	$ 833,000	$ 808,000	$ 1,600,000	$ 1,600,000
Accrued compensation and benefits	$ 2,400,000		$ 2,400,000		$ 3,900,000