v3.22.2.2
Condensed Consolidated Balance Sheets - USD ($)
Aug. 31, 2022
May 31, 2022
Aug. 31, 2021
Current assets:      
Cash and cash equivalents $ 21,686,839 $ 22,517,038 $ 20,146,836
Short-term investments 1,097,450 1,097,450  
Accounts and other receivables, net 5,832,298 4,466,686  
Inventory 5,903,319 5,854,935  
Costs and estimated earnings in excess of billings 2,832,538 3,336,474  
Other current assets 418,553 704,436  
Total current assets 37,770,997 37,977,019  
Maintenance and other inventory, net 1,001,056 1,107,309  
Property and equipment, net 10,370,433 9,854,759  
Other assets 206,499 205,359  
Deferred income taxes 74,615 74,615  
Total assets 49,423,600 49,219,061  
Current liabilities:      
Accounts payable 1,448,944 1,426,830  
Billings in excess of costs and estimated earnings 1,614,097 1,122,763  
Other current liabilities 2,067,743 3,414,314  
Total current liabilities 5,130,784 5,963,907  
Stockholders' Equity:      
Common stock and additional paid-in capital 10,364,549 10,329,258  
Retained earnings 36,843,269 35,840,898  
Stockholders’ equity before treasury stock 47,207,818 46,170,156  
Treasury stock - at cost (2,915,002) (2,915,002) (2,915,002)
Total stockholders’ equity 44,292,816 43,255,154 $ 40,983,918
Total liabilities and stockholders’ equity $ 49,423,600 $ 49,219,061