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Note 13 - Fair Value of Financial Instruments
12 Months Ended
Mar. 31, 2016
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
13.
FAIR VALUE OF FINANCIAL INSTRUMENTS
 
The Company measures and reports financial assets and liabilities at fair value, on a recurring basis. Fair value measurement is classified and disclosed in
one
of the following
three
categories:
 
Level
 
1:
Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.
 
Level
 
2:
Quoted prices in markets that are
not
active or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability.
 
Level
 
3:
Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported by little or
no
market activity).
 
The Company
’s assets and liabilities measured at fair value (all Level
1
categories) were as follows:
 
   
Fair Value Measurements at March 31,
 
   
2016
   
2015
 
                 
Marketable securities
  $
9,655,915
    $
5,278,752
 
 
The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents, accounts receivable, notes receivable and accrued expenses approximate their fair value at
March 31, 2016
and
2015.