CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ (116,234)	$ 220,777
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	169,237	190,005
Amortization of debt issue costs	15,141	10,741
Stock based compensation expense	55,500	30,625
Change in contract loss provision	(64,699)	120,393
Deferred income taxes	(37,360)	90,218
Changes in operating assets and liabilities:
Accounts receivable	73,771	144,381
Contract assets	(692,842)	1,517,221
Inventories	(79,834)	38,517
Other current assets	187,261	78,219
Accounts payable	370,914	(342,639)
Accrued expenses	38,614	5,915
Contract liabilities	(288,712)	(401,097)
Net cash (used in) provided by operating activities	(369,243)	1,703,276
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(41,768)	(10,200)
Net cash used in investing activities	(41,768)	(10,200)
CASH FLOWS FROM FINANCING ACTIVITIES
Debt issue costs	(8,282)	0
Proceeds from payroll protection program	1,317,100	0
Proceeds from revolver loan	1,000,000	0
Repayment of revolver loan	(1,000,000)	0
Repayment of long-term debt	(26,618)	(199,533)
Net cash provided by (used in) financing activities	1,282,200	(199,533)
Effect of exchange rate on cash and cash equivalents	(6)	164
Net increase in cash and cash equivalents	871,183	1,493,707
Cash and cash equivalents, beginning of period	930,856	2,036,646	$ 2,036,646
Cash and cash equivalents, end of period	1,802,039	3,530,353	$ 930,856
Cash paid during the year for:
Interest	40,024	65,723
Income taxes	$ 0	$ 0
SUPPLEMENTAL INFORMATION - NONCASH INVESTING AND FINANCING TRANSACTIONS:
Options exercised to purchase common stock	150,000		20,000
Common stock, par value (in dollars per share)	$ 0.0001		$ 0.0001