Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Aug. 31, 2019	Nov. 30, 2018
Current assets:
Cash	$ 5,045	$ 3,512
Accounts receivable-customers, net of allowance for doubtful accounts of $24,654 and $25,100 in 2019 and 2018, respectively	2,502,390	1,537,113
Inventories, net	9,762,914	10,257,102
Cost and profit in excess of billings	80,727	99,287
Net investment in sales-type leases, current	152,524	123,055
Other current assets	234,510	125,089
Total current assets	12,738,110	12,145,158
Property, plant, and equipment, net	5,465,620	5,647,485
Assets held for lease, net	759,640	1,870,125
Deferred income taxes	1,795,256	1,432,422
Net investment in sales-type leases, long-term	36,853	153,787
Other assets	72,517	76,497
Total assets	20,867,996	21,325,474
Current liabilities:
Accounts payable	1,035,257	802,062
Customer deposits	260,000	145,632
Billings in excess of cost and profit	1,315,877	185,014
Income taxes payable	6,400	6,400
Accrued expenses	955,897	893,284
Line of credit	2,909,530	3,505,530
Current portion of long-term debt	84,319	227,459
Total current liabilities	6,567,280	5,765,381
Long-term liabilities
Long-term debt, excluding current portion	2,372,184	2,523,018
Total liabilities	8,939,464	8,288,399
Commitments and Contingencies (Notes 9 and 10)
Stockholders’ equity:
Undesignated preferred stock - $0.01 par value. Authorized 500,000 shares in 2019 and 2018; issued 0 shares in 2019 and 2018.
Common stock – $0.01 par value. Authorized 9,500,000 shares in 2019 and 2018; issued 4,316,087 in 2019 and 4,225,050 in 2018	43,161	42,250
Additional paid-in capital	3,214,766	3,055,632
Retained earnings	8,715,738	9,966,928
Treasury stock, at cost (17,875 in 2019 and 9,286 in 2018 shares)	(45,133)	(27,735)
Total stockholders’ equity	11,928,532	13,037,075
Total liabilities and stockholders’ equity	$ 20,867,996	$ 21,325,474