Balance Sheets - USD ($)	Jun. 30, 2020	Jun. 30, 2019
ASSETS
Cash and cash equivalents	$ 5,402,122	$ 1,462,761
Investment securities	5,141,520	5,684,240
Trade accounts receivable, net of allowance of $3,000	9,013,405	10,995,783
Inventories:
Raw materials	2,057,778	1,747,449
Work-in-process	614,521	408,130
Costs related to contracts in process	12,115,756	11,069,558
Total inventories	14,788,055	13,225,137
Prepaid expenses and other current assets	396,886	494,181
Total current assets	34,741,988	31,862,102
Property, plant and equipment, net	3,466,778	3,825,411
Total assets	38,208,766	35,687,513
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	2,861,696	2,160,433
Accrued expenses:
Salaries and wages	469,201	329,890
Vacation	689,834	786,870
Other	318,322	109,755
Payroll and other taxes withheld	186,970	61,451
Contract liabilities	2,175,235	6,054
Income taxes payable	47,707	30,481
Total current liabilities	6,748,965	3,484,934
Deferred tax liabilities	232,953	277,075
Total liabilities	6,981,918	3,762,009
Commitments and Contingencies (See Note 14)
Common stock, par value $.33-1/3 per share Authorized 10,000,000 shares; Issued 3,029,874 shares as of June 30, 2020 and 2019. Outstanding 2,402,633 and 2,401,213 as of June 30, 2020 and 2019, respectively (includes 0 and 14,166 Unearned ESOP Shares, respectively)	1,009,958	1,009,958
Capital in excess of par value	19,073,213	18,731,975
Accumulated other comprehensive loss	(3,107)	(1,299)
Retained earnings	18,797,589	20,022,132
Total stockholders equity before ESOP and treasury stock	38,877,653	39,762,766
Less: Unearned ESOP shares		(204,706)
Cost of 627,241 and 628,661 shares of common stock in treasury as of June 30, 2020 and 2019, respectively	(7,650,805)	(7,632,556)
Total stockholders' equity	31,226,848	31,925,504
Total liabilities and stockholders' equity	$ 38,208,766	$ 35,687,513