Consolidated Income Statements - Unaudited - USD ($)	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
REVENUES	$ 176,307,000	$ 152,620,000
Cost of revenues	136,438,000	115,407,000
Gross profit	39,869,000	37,213,000
General and administrative expenses	18,671,000	16,645,000
Income before income tax provision	21,198,000	20,568,000
Income tax provision	4,507,000	3,725,000
NET INCOME	$ 16,691,000	$ 16,843,000
Net income per common and common equivalent share
Basic	$ 0.95	$ 0.94
Diluted	$ 0.94	$ 0.92
Weighted average common and common equivalent shares
Basic	17,506,000	17,897,000
Diluted	17,803,000	18,220,000