Consolidated Income Statements (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Consolidated Income Statements [Abstract]
REVENUES	$ 118,113,000	$ 104,606,000
Cost of revenues	91,195,000	81,425,000
Gross profit	26,918,000	23,181,000
General and administrative expenses	12,842,000	12,174,000
Income before income tax provision	14,076,000	11,007,000
Income tax provision	5,467,000	4,411,000
NET INCOME	$ 8,609,000	$ 6,596,000
Net income per common and common equivalent share
Basic	$ 0.40	$ 0.29
Diluted	$ 0.40	$ 0.29
Weighted average common and common equivalent shares
Basic	21,396,000	22,626,000
Diluted	21,584,000	22,852,000