CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($)	Dec. 31, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,255,320	$ 930,856
Accounts receivable, net	1,173,376	990,300
Contract assets	5,314,653	4,504,621
Raw materials	503,636	561,572
Work-in-process	694,848	656,041
Other current assets	442,024	606,151
Total current assets	9,383,857	8,249,541
Property, plant and equipment, net	4,208,329	4,182,861
Deferred income taxes	2,016,816	2,115,480
Other noncurrent assets, net	16,086	32,600
Total assets	15,625,088	14,580,482
Current liabilities:
Accounts payable	510,434	185,065
Accrued expenses	1,306,109	1,554,524
Contract liabilities	308,358	805,049
Current portion of long-term debt	3,088,553	109,829
Total current liabilities	5,213,454	2,654,467
Long-term debt	717,559	2,456,560
Commitments and contingent liabilities (Note 13)
Stockholders' Equity:
Common stock - par value $.0001 per share, 90,000,000 shares authorized, 29,498,662 and 29,354,594 shares issued and outstanding, at December 31, 2020 and March 31, 2020	2,949	2,935
Additional paid in capital	8,911,160	8,793,062
Accumulated other comprehensive income	21,838	21,688
Retained earnings	758,128	651,770
Total stockholders' equity	9,694,075	9,469,455
Total liabilities and stockholders' equity	$ 15,625,088	$ 14,580,482