Annual report pursuant to Section 13 and 15(d)

Marketable Securities (Tables)

v3.19.1
Marketable Securities (Tables)
12 Months Ended
Dec. 31, 2018
Disclosure Marketable Securities Tables Abstract  
Marketable securities

    2018     2017  
Certificates of deposit   $ 13,151,000     $ 2,000,000  
Short term bond funds     14,723,000       7,750,000  
Corporate bonds and notes     8,437,000       1,054,000  
Total Marketable securities   $ 36,311,000     $ 10,804,000