Consolidated Income Statements (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Consolidated Income Statements [Abstract]
REVENUES	$ 104,606,000	$ 102,307,000
Cost of revenues	81,425,000	76,764,000
Gross profit	23,181,000	25,543,000
General and administrative expenses	12,174,000	12,294,000
Income before income tax provision	11,007,000	13,249,000
Income tax provision	4,411,000	5,051,000
NET INCOME	$ 6,596,000	$ 8,198,000
Net income per common and common equivalent share
Basic	$ 0.58	$ 0.71
Diluted	$ 0.58	$ 0.70
Weighted average common and common equivalent shares
Basic	11,313,000	11,617,000
Diluted	11,426,000	11,787,000