Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.19.2
Commitments and Contingencies (Details) - USD ($)
Jun. 30, 2019
Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]    
Guarantee of obligations of Eurosite Power, Inc. $ 168,000  
Guarantee liability $ 7,000 $ 350,000