Capital Requirements (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Assets	$ 22,704,000	$ 18,177,000
Cash and cash equivalents	4,667,000	7,229,000	$ 6,686,000	$ 3,765,000
MSCO [Member]
Net capital	7,000,000	8,900,000
Minimum net capital required	250,000	250,000
Net capital in excess of minimum requirement	$ 6,800,000	$ 8,700,000