Balance Sheets - USD ($)	Dec. 31, 2020	Jun. 30, 2020
ASSETS:
Cash and cash equivalents	$ 9,040,393	$ 5,402,122
Investment securities	3,203,113	5,141,520
Trade accounts receivable, net of allowance of $3,000	4,207,602	9,013,405
Income tax receivable	86,274
ESOP receivable due to dividends on unallocated shares	18,726
Inventories:
Raw materials	2,076,391	2,057,778
Work-in-process	362,494	614,521
Costs related to contracts in process	14,055,905	12,115,756
Total inventories	16,494,790	14,788,055
Prepaid expenses and other current assets	506,501	396,886
Total current assets	33,557,399	34,741,988
Property, plant and equipment, net	3,224,610	3,466,778
Total assets	36,782,009	38,208,766
LIABILITIES AND STOCKHOLDERS' EQUITY:
Accounts payable	3,253,983	2,861,696
Accrued expenses:
Salaries and wages	344,141	469,201
Vacation	666,160	689,834
Other	90,186	318,322
Payroll and other taxes withheld	463,285	186,970
Contract liabilities	1,650,288	2,175,235
Income taxes payable		47,707
Total current liabilities	6,468,043	6,748,965
Deferred tax liabilities	197,705	232,953
Total liabilities	6,665,748	6,981,918
Commitments and contingencies (see Note 5)
Common stock, par value $.33-1/3 per share Authorized 10,000,000 shares; Issued 3,129,874 and 3,029,874 shares as of December 31, 2020 and June 30, 2020, respectively. Outstanding 2,702,633 and 2,402,633 as of December 31, 2020 And June 30, 2020, respectively (includes 297,061 and 0 Unearned ESOP shares, respectively)	1,043,291	1,009,958
Capital in excess of par value	22,995,640	19,073,213
Accumulated other comprehensive loss	(2,069)	(3,107)
Retained earnings	17,605,090	18,797,589
Total stockholders equity before ESOP	41,641,952	38,877,653
Less: Unearned ESOP shares	(5,487,000)
Less: Cost of 427,241 and 627,241 shares of common stock in treasury as of December 31, 2020 and June 30, 2020, respectively	(6,038,691)	(7,650,805)
Total stockholders' equity	30,116,261	31,226,848
Total liabilities and stockholders' equity	$ 36,782,009	$ 38,208,766