Related Party Transactions	12 Months Ended
Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	18. Related Party Transactions In addition to the warrant issuances to directors and Unilumin described in Note 11 and the Company’s loans from Carlisle described in Note 12, the Company has the following related party transactions: Yaozhong Shi, a director of the Company, is the Chairman of Transtech LED Company Limited (“Transtech”), which is one of our primary LED suppliers. The Company purchased $211,000 and $1.9 million of product from Transtech in 2018 and 2017, respectively. Amounts payable by the Company to Transtech were $305,000 and $149,000 as of December 31, 2018 and 2017, respectively. On March 4, 2019, Unilumin exercised a portion of the Unilumin Warrant to purchase 2,061,856 shares of our Common Stock, resulting in gross proceeds of $2.0 million. On April 5, 2019, the Rights Offering terminated. At the closing of the Rights Offering on April 9, 2019, the Company received gross proceeds of $2.5 million in exchange for 2,500,000 shares of Common Stock. On April 5, Unilumin exercised the remaining of the Unilumin Warrant to purchase 3,608,247 shares of our Common Stock, resulting in gross proceeds of $3.5 million. The Company used the proceeds from the Rights Offering and the Unilumin Warrant to satisfy its obligations under its credit and security agreement (“Credit Agreement”) with CNH Finance Fund I, L.P. (“CNH”). The Company also used a portion of the net proceeds for working capital. As a result of the exercises of the Unilumin Warrant, the Rights Offering and the conversion of the SBCPS to Common Stock, Unilumin now holds 52.2% of the Company’s outstanding Common Stock. On March 4, 2019, the Unilumin exercised $2.0 million of the Unilumin Warrant, and on April 5, 2019, Unilumin exercised the remaining $3.5 million of the Unilumin Warrant, raising an aggregate of $5.5 million for the Company. Nicholas Fazio and Yang Liu, both directors of the Company, are directors of Unilumin. As of December 31, 2018, the Company had outstanding payables to certain executive officers aggregating $427,000.

18. Related Party Transactions

In addition to the warrant issuances to directors and Unilumin described in Note 11 and the Company’s loans from Carlisle described in Note 12, the Company has the following related party transactions:

Yaozhong Shi, a director of the Company, is the Chairman of Transtech LED Company Limited (“Transtech”), which is one of our primary LED suppliers. The Company purchased $211,000 and $1.9 million of product from Transtech in 2018 and 2017, respectively. Amounts payable by the Company to Transtech were $305,000 and $149,000 as of December 31, 2018 and 2017, respectively.

On March 4, 2019, Unilumin exercised a portion of the Unilumin Warrant to purchase 2,061,856 shares of our Common Stock, resulting in gross proceeds of $2.0 million.

On April 5, 2019, the Rights Offering terminated. At the closing of the Rights Offering on April 9, 2019, the Company received gross proceeds of $2.5 million in exchange for 2,500,000 shares of Common Stock.

On April 5, Unilumin exercised the remaining of the Unilumin Warrant to purchase 3,608,247 shares of our Common Stock, resulting in gross proceeds of $3.5 million.

The Company used the proceeds from the Rights Offering and the Unilumin Warrant to satisfy its obligations under its credit and security agreement (“Credit Agreement”) with CNH Finance Fund I, L.P. (“CNH”). The Company also used a portion of the net proceeds for working capital. As a result of the exercises of the Unilumin Warrant, the Rights Offering and the conversion of the SBCPS to Common Stock, Unilumin now holds 52.2% of the Company’s outstanding Common Stock.

On March 4, 2019, the Unilumin exercised $2.0 million of the Unilumin Warrant, and on April 5, 2019, Unilumin exercised the remaining $3.5 million of the Unilumin Warrant, raising an aggregate of $5.5 million for the Company. Nicholas Fazio and Yang Liu, both directors of the Company, are directors of Unilumin.

As of December 31, 2018, the Company had outstanding payables to certain executive officers aggregating $427,000.