Balance Sheets - USD ($)	Jun. 30, 2017	Jun. 30, 2016
ASSETS
Cash and cash equivalents	$ 10,058,163	$ 10,031,644
Investment securities	9,426,968	5,580,059
Trade accounts receivable, net of allowance of $3,000	3,399,613	4,957,464
Income tax receivable	120,179	329,298
Inventories:
Raw materials	1,303,259	1,418,862
Work-in-process	512,014	504,674
Costs related to contracts in process, net of advance payments of $1,366,504 and $18,313 as of June 30, 2017 and 2016, respectively	7,863,538	8,810,145
Total inventories	9,678,811	10,733,681
Deferred tax assets	317,559	252,558
Prepaid expenses and other current assets	227,306	219,688
Total current assets	33,228,599	32,104,392
Property, plant and equipment, net	2,265,096	2,348,525
Total assets	35,493,695	34,452,917
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	2,250,115	552,787
Accrued expenses:
Salaries and wages	172,045	357,910
Vacation	656,199	704,761
Other	250,283	196,631
Payroll and other taxes withheld	46,939	49,353
Total current liabilities	3,375,581	1,861,442
Deferred tax liabilities	220,571	203,237
Total liabilities	3,596,152	2,064,679
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, 2017 and 2016. Outstanding 2,371,321 and 2,364,684 as of June 30, 2017 and 2016, respectively (includes 45,000 and 61,667 Unearned ESOP Shares, respectively)	1,009,958	1,009,958
Capital in excess of par value	17,650,335	17,253,072
Accumulated other comprehensive loss	(3,599)	(1,408)
Retained earnings	21,670,196	22,820,938
Total stockholders equity before ESOP and treasury stock	40,326,890	41,082,560
Less: Unearned ESOP shares	(650,248)	(891,083)
Cost of 658,553 and 665,190 shares of common stock in treasury as of June 30, 2017 and 2016, respectively	(7,779,099)	(7,803,239)
Total stockholders' equity	31,897,543	32,388,238
Total liabilities and stockholders' equity	$ 35,493,695	$ 34,452,917