XML 29 R20.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 4 - Cash - Restricted (Details Textual)
3 Months Ended
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Number of Land Parcels Sold 4    
Proceeds from Sale of Property, Plant, and Equipment, Total $ 993,160 $ 3,390  
Restricted Cash and Cash Equivalents, Current, Total 993,160   $ 33,821
Land [Member]      
Proceeds from Sale of Property, Plant, and Equipment, Total $ 993,160