v3.26.1
Consolidated Balance Sheets - USD ($)
May 31, 2026
May 31, 2025
Current assets    
Cash and cash equivalents $ 904,823 $ 1,190,656
Short-term investments 40,574,152 34,799,367
Accounts receivable, net (Note 2) [1] 3,931,831 5,599,785
Inventory (Note 3) [2] 7,529,043 8,113,321
Prepaid expenses 1,450,157 1,124,878
Prepaid income taxes 0 94,333
Costs and estimated earnings in excess of billings (Note 4) [3] 8,032,246 5,360,499
Total current assets 62,422,252 56,282,839
Maintenance and other inventory, net (Note 5) [4] 1,205,996 1,107,875
Property and equipment, net (Note 6) [5] 12,306,100 12,074,172
Patents, net 248,148 270,370
Cash value of life insurance, net 223,968 219,444
Other assets 65,420 65,420
Deferred income taxes (Note 10) [6] 1,273,000 1,598,000
Assets 77,744,884 71,618,120
Current liabilities    
Accounts payable 574,264 1,119,240
Accrued expenses (Note 8) [7] 2,946,494 4,072,436
Billings in excess of costs and estimated earnings (Note 4) [3] 1,367,083 4,382,067
Accrued income taxes 4,892 0
Total current liabilities 4,892,733 9,573,743
Stockholders' equity    
Common Stock, Value 107,316 104,835
Paid-in capital 18,104,171 14,544,580
Retained earnings 69,103,828 60,540,154
Treasury stock - 1,070,762 and 1,051,688 shares at cost (14,463,164) (13,145,192)
Total stockholders' equity 72,852,151 62,044,377
Liabilities and Equity $ 77,744,884 $ 71,618,120
[1] Note 2
[2] Note 3
[3] Note 4Note 4
[4] Note 5
[5] Note 6
[6] Note 10Note 10
[7] Note 8