Commitments and Contingencies	9 Months Ended
Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 14 – COMMITMENTS AND CONTINGENCIES Maintenance Bond In connection with service agreements with certain customers, the Company is required to provide a maintenance bond to guarantee the maintenance for a specified period of time following completion of service. The Company purchases maintenance bonds from third-party guarantors and is not exposed to contingent liabilities. Legal Proceedings From time to time the Company may be named in claims arising in the ordinary course of business. Currently, no legal proceedings, government actions, administrative actions, investigations or claims are pending against the Company or involve the Company that, in the opinion of management, could reasonably be expected to have a material adverse effect on its business and financial condition except for the lawsuit against Shinwoo E&D Co., Ltd. (“Shinwoo”). There was an unpaid amount due ￦84,095,000 from Shinwoo in dispute as of December 31, 2017. The Company filed a lawsuit and the ruling by the district court at January 18, 2018 was in favor of the Company. Shinwoo appealed against the court decision at February 1, 2018. The Company believes it is probable that it will not suffer from an adverse outcome related to the case. The Company has not recorded any reserve related to this dispute as of September 30, 2018.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

NOTE 14 – COMMITMENTS AND CONTINGENCIES

Maintenance Bond

In connection with service agreements with certain customers, the Company is required to provide a maintenance bond to guarantee the maintenance for a specified period of time following completion of service. The Company purchases maintenance bonds from third-party guarantors and is not exposed to contingent liabilities.

Legal Proceedings

From time to time the Company may be named in claims arising in the ordinary course of business. Currently, no legal proceedings, government actions, administrative actions, investigations or claims are pending against the Company or involve the Company that, in the opinion of management, could reasonably be expected to have a material adverse effect on its business and financial condition except for the lawsuit against Shinwoo E&D Co., Ltd. (“Shinwoo”). There was an unpaid amount due ￦84,095,000 from Shinwoo in dispute as of December 31, 2017. The Company filed a lawsuit and the ruling by the district court at January 18, 2018 was in favor of the Company. Shinwoo appealed against the court decision at February 1, 2018. The Company believes it is probable that it will not suffer from an adverse outcome related to the case. The Company has not recorded any reserve related to this dispute as of September 30, 2018.