Investment in Unconsolidated Affiliates	3 Months Ended
Mar. 31, 2020
Investments, All Other Investments [Abstract]
Investment in Unconsolidated Affiliates	Note 6. Investment in Unconsolidated Affiliates. During 2017 and 2016, we made investments in Semitech Semiconductor Pty. Ltd., an Australian corporation (“Semitech”), as part of a license and development agreement dated April 16, 2016. Semitech has developed Narrowband-Power Line Communications (“N-PLC”) products and market knowledge in the N-PLC devices space and plans to sell its products into the smart grid, solar, smart lighting and industrial space. Investments during 2016 through June 14, 2017 were recorded as notes receivable. On June 15, 2017, $0.4 million of notes receivable and accrued interest were converted into 233,335 shares of preferred stock in Semitech. In June 2018, we converted $0.5 million of notes receivable and accrued interest into 312,076 shares of preferred stock in Semitech. During the three months ended March 31, 2020 we invested $0.11 million in additional notes receivable in Semitech. This investment is recorded at cost in other non-current assets on the condensed consolidated balance sheets as of March 31, 2020 and December 31, 2019. As of March 31, 2020 and December 31, 2019, we held investments in notes receivable in Semitech in the amount of $0.8 million and $0.7 million, respectively, which were classified in other non-current assets on the condensed consolidated balance sheets.

Note 6. Investment in Unconsolidated Affiliates.

During 2017 and 2016, we made investments in Semitech Semiconductor Pty. Ltd., an Australian corporation (“Semitech”), as part of a license and development agreement dated April 16, 2016. Semitech has developed Narrowband-Power Line Communications (“N-PLC”) products and market knowledge in the N-PLC devices space and plans to sell its products into the smart grid, solar, smart lighting and industrial space. Investments during 2016 through June 14, 2017 were recorded as notes receivable. On June 15, 2017, $0.4 million of notes receivable and accrued interest were converted into 233,335 shares of preferred stock in Semitech. In June 2018, we converted $0.5 million of notes receivable and accrued interest into 312,076 shares of preferred stock in Semitech. During the three months ended March 31, 2020 we invested $0.11 million in additional notes receivable in Semitech. This investment is recorded at cost in other non-current assets on the condensed consolidated balance sheets as of March 31, 2020 and December 31, 2019. As of March 31, 2020 and December 31, 2019, we held investments in notes receivable in Semitech in the amount of $0.8 million and $0.7 million, respectively, which were classified in other non-current assets on the condensed consolidated balance sheets.