Balance Sheets (Unaudited) - USD ($) $ in Thousands	Feb. 29, 2020	Nov. 30, 2019
CURRENT ASSETS
Cash and cash equivalents	$ 14,706	$ 13,890
Short-term investments		2,089
Receivables, net of allowance for doubtful accounts of $0 at February 29, 2020 and November 30, 2019	3,475	3,382
Contract assets	864	519
Inventories:
Raw materials and supplies	5,185	4,427
Work-in process	2,593	2,616
Total inventories	7,778	7,403
Prepaid expenses and other assets	441	572
Total current assets	27,264	27,495
PROPERTY, PLANT AND EQUIPMENT, at cost:
Land	1,518	1,518
Buildings	498	498
Facility improvements	1,109	1,109
Furniture and fixtures	977	977
Construction in process equipment	653	645
Machinery and equipment	8,999	9,027
Total property, plant, and equipment	13,754	13,774
Less accumulated depreciation	(10,185)	(10,125)
Net property, plant, and equipment	3,569	3,649
Operating lease right to use asset	153
Total assets	30,986	31,144
CURRENT LIABILITIES:
Accounts payable	837	851
Accrued compensation	665	1,287
Deferred revenue	242	390
Property taxes	37	104
Income tax	318	213
Current portion of operating lease liabilities	36
Other accrued liabilities	27	26
Total current liabilities	2,162	2,871
Operating lease liabilities	117
Deferred income taxes, net	20	20
Total liabilities	2,299	2,891
SHAREHOLDERS’ EQUITY
Common stock, $.10 par value, authorized 10,000,000 shares, 3,078,315 issued and 2,578,315 outstanding at February 29, 2020 and November 30, 2019	308	308
Additional paid-in-capital	885	885
Treasury stock, 500,000 shares, at cost	(1,250)	(1,250)
Retained earnings	28,744	28,310
Total shareholders’ equity	28,687	28,253
Total liabilities and shareholders’ equity	$ 30,986	$ 31,144