CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($)	Sep. 30, 2020	Mar. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,091,613	$ 930,856
Accounts receivable, net	1,378,617	990,300
Contract assets	5,980,533	4,504,621
Raw materials	517,681	561,572
Work-in-process	573,475	656,041
Other current assets	285,304	606,151
Total current assets	9,827,223	8,249,541
Property, plant and equipment, net	4,198,417	4,182,861
Deferred income taxes	2,041,538	2,115,480
Other noncurrent assets, net	10,056	32,600
Total assets	16,077,234	14,580,482
Current liabilities:
Accounts payable	210,373	185,065
Accrued expenses	1,664,732	1,554,524
Contract liabilities	636,195	805,049
Current portion of long-term debt	258,780	109,829
Total current liabilities	2,770,080	2,654,467
Long-term debt	3,571,354	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 September 30, 2020 and March 31, 2020	2,949	2,935
Additional paid in capital	8,905,965	8,793,062
Accumulated other comprehensive income	20,586	21,688
Retained earnings	806,300	651,770
Total stockholders' equity	9,735,800	9,469,455
Total liabilities and stockholders' equity	$ 16,077,234	$ 14,580,482