Consolidated Balance Sheets - USD ($)	Nov. 30, 2020	Nov. 30, 2019
Current assets:
Cash	$ 2,684	$ 3,145
Accounts receivable-customers, net of allowance for doubtful accounts of $51,175 and $22,925 in 2020 and 2019, respectively	2,390,604	1,679,975
Inventories, net	7,762,400	8,778,507
Cost and profit in excess of billings	56,026	726,667
Net investment in sales-type leases, current	28,352	148,005
Other current assets	61,284	70,931
Total current assets	10,301,350	11,407,230
Property, plant, and equipment, net	5,218,662	5,362,907
Assets held for lease, net	521,555	713,782
Deferred income taxes	2,667,686	1,786,048
Net investment in sales-type leases, long-term		5,782
Other assets	93,760	71,189
Total assets	18,803,013	19,346,938
Current liabilities:
Accounts payable	1,955,404	1,205,313
Customer deposits	198,225	105,363
Billings in excess of cost and profit	276,226	88,931
Income taxes payable	1,100	6,400
Accrued expenses	1,279,312	1,132,826
Line of credit	2,359,530	2,578,530
Current portion of long-term debt	94,979	85,401
Total current liabilities	6,164,776	5,202,764
Long-term liabilities
Long-term portion of operating lease liabilities	18,342
Long-term debt, excluding current portion	2,713,150	2,350,592
Total liabilities	8,896,268	7,553,356
Commitments and Contingencies (Notes 8, 9 and 15)
Stockholders’ equity:
Undesignated preferred stock - $0.01 par value. Authorized 500,000 shares in 2020 and 2019; issued and outstanding 0 shares in 2020 and 2019.
Common stock – $0.01 par value. Authorized 9,500,000 shares in 2020 and 2019; issued 4,470,004 in 2020 and 4,321,087 in 2019	44,700	43,211
Additional paid-in capital	3,496,243	3,250,087
Retained earnings	6,443,856	8,547,342
Treasury stock, at cost (35,097 in 2020 and 18,842 in 2019 shares)	(78,054)	(47,058)
Total stockholders’ equity	9,906,745	11,793,582
Total liabilities and stockholders’ equity	$ 18,803,013	$ 19,346,938