Quarterly report pursuant to Section 13 or 15(d)

10. Segment and Geographic Information (Details)

v3.19.2
10. Segment and Geographic Information (Details) - USD ($)
3 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Revenues $ 4,711,000 $ 4,369,000
Product [Member]    
Revenues 4,385,000 4,095,000
Product [Member] | UNITED STATES    
Revenues 2,487,000 1,971,000
Product [Member] | Latin America [Member]    
Revenues 654,000 1,079,000
Product [Member] | Europe and Rest of the World [Member]    
Revenues $ 1,244,000 $ 1,045,000