XML 75 R61.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 7 - Accrued Expenses - Product Warranty Reserves (Details) - USD ($)
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Beginning Balance $ 266,455 $ 231,803
Amounts charged to expense (15,173) 140,768
Actual warranty costs paid (87,042) (166,916)
Delphax acquisition 60,800
Ending Balance $ 164,240 $ 266,455