Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details)

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Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]            
Foreign currency items, Balance at Beginning       $ (465,000) $ (388,000) $ (465,000)
Foreign currency items, Net current period change         133,000 107,000
Foreign currency items, Balance at End $ (255,000) $ (358,000)     (255,000) (358,000)
Unrealized gain (losses) on investments, Balance at Beginning       (113,000) (47,000) (113,000)
Unrealized gain (losses) on investments, Net current period change   88,000 $ (12,000) (60,000) 47,000 16,000
Unrealized gain (losses) on investments, Balance at End (97,000)     (97,000)
Accumulated other comprehensive loss, Balance at Beginning       $ (578,000) (435,000) (578,000)
Accumulated other comprehensive loss, Net current period change 191,000 143,000     180,000 123,000
Accumulated other comprehensive loss, Balance at End $ (255,000) $ (455,000)     $ (255,000) $ (455,000)