Consolidated Income Statements - Unaudited - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
REVENUES	$ 179,386,000	$ 164,508,000	$ 533,119,000	$ 474,871,000
Cost of revenues	139,041,000	129,320,000	416,811,000	365,808,000
Gross profit	40,345,000	35,188,000	116,308,000	109,063,000
General and administrative expenses	18,128,000	17,506,000	54,347,000	50,810,000
Income before income tax provision	22,217,000	17,682,000	61,961,000	58,253,000
Income tax provision	5,368,000	3,824,000	13,765,000	11,480,000
NET INCOME	$ 16,849,000	$ 13,858,000	$ 48,196,000	$ 46,773,000
Net income per common and common equivalent share
Basic	$ 0.98	$ 0.78	$ 2.77	$ 2.62
Diluted	$ 0.96	$ 0.76	$ 2.73	$ 2.57
Weighted average common and common equivalent shares
Basic	17,245,000	17,785,000	17,379,000	17,841,000
Diluted	17,487,000	18,211,000	17,647,000	18,221,000