Discontinued operations - CW-Belize (Details Textual) - CW Belize Member [Member] - USD ($)			3 Months Ended		12 Months Ended
	Feb. 14, 2019	Jan. 07, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Proceeds From Repatriated Funds			$ 1,000,000	$ 2,750,000	$ 458,000	$ 400,000
Subsequent Event [Member]
Proceeds From Repatriated Funds		$ 1,100,000
Disposal Group, Including Discontinued Operation, Consideration	$ 7,000,000
Proceeds from Divestiture of Businesses	6,735,000
Contingent Consideration For Other Obligations	$ 265,000