Balance Sheets - USD ($)	Jun. 30, 2021	Jun. 30, 2020
ASSETS
Cash and cash equivalents	$ 6,802,712	$ 5,402,122
Investment securities	3,092,000	5,141,520
Trade accounts receivable, net of allowance of $3,000	5,353,781	9,013,405
Income tax receivable	249,602
Inventories:
Raw materials	2,111,058	2,057,778
Work-in-process	326,198	614,521
Costs related to contracts in process	16,354,636	12,115,756
Total inventories	18,791,892	14,788,055
Prepaid expenses and other current assets	700,297	396,886
Total current assets	34,990,284	34,741,988
Property, plant and equipment, net	2,990,519	3,466,778
Total assets	37,980,803	38,208,766
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	2,718,173	2,861,696
Accrued expenses:
Salaries and wages	475,667	469,201
Vacation	672,611	689,834
Other	126,014	318,322
Payroll and other taxes withheld	409,881	186,970
Contract liabilities	3,077,605	2,175,235
Income taxes payable		47,707
Total current liabilities	7,479,951	6,748,965
Deferred tax liabilities	168,557	232,953
Total liabilities	7,648,508	6,981,918
Commitments and Contingencies (See Note 14)
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 June 30, 2021 and 2020, respectively. Outstanding 2,702,633 and 2,402,633 as of June 30, 2021 and 2020, respectively (includes 279,429 and 0 Unearned ESOP Shares, respectively)	1,043,291	1,009,958
Capital in excess of par value	23,026,096	19,073,213
Accumulated other comprehensive loss	(2,361)	(3,107)
Retained earnings	17,414,730	18,797,589
Total stockholders equity before ESOP and treasury stock	41,481,756	38,877,653
Less: Unearned ESOP shares	(5,110,770)
Cost of 427,241 and 627,241 shares of common stock in treasury as of June 30, 2021 and 2020, respectively	(6,038,691)	(7,650,805)
Total stockholders' equity	30,332,295	31,226,848
Total liabilities and stockholders' equity	$ 37,980,803	$ 38,208,766