XML 31 R4.htm IDEA: XBRL DOCUMENT v3.19.1
Consolidated Statements of Operations and Comprehensive Income - USD ($)
 12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Income Statement [Abstract]    
Net Sales $ 11,609,599 $ 11,008,444
Cost of Goods Sold 6,361,353 5,711,951
Gross Profit 5,248,246 5,296,493
Operating Expenses    
Research and product development 1,324,766 1,280,308
Marketing and selling 2,686,382 2,516,461
General and administrative 1,154,611 1,118,107
Total Operating Expenses 5,165,759 4,914,876
Operating Income (Loss) 82,487 381,617
Other Income (Expense):    
Interest Expense (39,977) (46,117)
Interest and Dividend Income 136,677 91,459
Realized gain on sale of marketable securities 73,699 11,208
Net unrealized loss on marketable securities (100,184)
Other Income 28,732 21,896
Income Before Income Taxes 181,434 460,063
Income Tax (Benefit) Expense 19,847 91,856
Net Income 161,587 368,207
Other Comprehensive Income (Loss)    
Net unrealized gain on marketable securities   59,355
Comprehensive Income $ 161,587 $ 427,562
Basic Earnings Per Share $ 0.01 $ 0.02
Diluted Earnings Per Share $ 0.01 $ 0.02
Weighted Average Shares - Basic 15,107,778 14,968,450
Weighted Average Shares - Diluted 15,218,913 15,095,123