Revenue Recognition - Schedule of Revenue Expected to be Recognized (Details)	Dec. 31, 2018 USD ($)
Revenue expected to be recognized	$ 8,349,000
2019 [Member]
Revenue expected to be recognized	1,887,000
2020 [Member]
Revenue expected to be recognized	1,887,000
2021 [Member]
Revenue expected to be recognized	1,887,000
2022 [Member]
Revenue expected to be recognized	1,887,000
2023 [Member]
Revenue expected to be recognized	$ 801,000