Balance Sheets - USD ($)	Mar. 31, 2019	Jun. 30, 2018
ASSETS:
Cash and cash equivalents	$ 1,488,191	$ 4,298,796
Investment securities	5,833,276	11,520,706
Trade accounts receivable, net of allowance of $3,000	7,951,321	4,377,726
Income tax receivable	126,019	161,975
Inventories:
Raw materials	1,674,193	1,562,581
Work-in-process	704,885	966,342
Costs related to contracts in process	12,569,359	8,880,003
Total inventories	14,948,437	11,408,926
Prepaid expenses and other current assets	368,214	1,292,575
Total current assets	30,715,458	33,060,704
Property, plant and equipment, net	3,899,222	3,758,637
Total assets	34,614,680	36,819,341
LIABILITIES AND STOCKHOLDERS' EQUITY:
Accounts payable	1,938,499	1,822,597
Accrued expenses:
Salaries and wages	292,184	529,005
Vacation	783,113	707,612
ESOP payable	246,629
Other	143,897	104,663
Payroll and other taxes withheld	61,654	53,435
Contract liabilities	20,935	102,924
Total current liabilities	3,486,911	3,320,236
Deferred tax liabilities	153,727	17,693
Total liabilities	3,640,638	3,337,929
Commitments and contingencies (see Note 5)
Common stock, par value $.33-1/3 per share Authorized 10,000,000 shares; Issued 3,029,874 shares as of March 31, 2019 and June 30, 2018. Outstanding 2,402,523 and 2,387,124 as of March 31, 2019 and June 30, 2018, respectively (includes 17,916 and 29,166 Unearned ESOP shares, respectively)	1,009,958	1,009,958
Capital in excess of par value	18,505,702	18,201,691
Accumulated other comprehensive loss	(2,583)	(6,349)
Retained earnings	19,474,211	22,416,400
Total stockholders equity before ESOP	38,987,288	41,621,700
Less: Unearned ESOP shares	(421,453)	(421,453)
Cost of 627,351 and 642,750 shares of common stock in treasury as of March 31, 2019 and June 30, 2018, respectively	(7,591,793)	(7,718,835)
Total stockholders' equity	30,974,042	33,481,412
Total liabilities and stockholders' equity	$ 34,614,680	$ 36,819,341