Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Summary of Accounting Policies (Details Textual)

v3.7.0.1
Note 2 - Summary of Accounting Policies (Details Textual) - USD ($)
1 Months Ended 6 Months Ended 18 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
May 31, 2017
Dec. 31, 2016
Jun. 30, 2014
Proceeds from Sale of Variable Interest Entity Shares with Agreement to Repurchase   $ 125,000        
Shipping, Handling and Transportation Costs   $ 0          
Minimum [Member]              
Property, Plant and Equipment, Useful Life   5 years          
Maximum [Member]              
Property, Plant and Equipment, Useful Life   7 years          
Milestone China [Member]              
Variable Interest Entity Majority Shareholder Ownership Percentage   53.00%          
Equity Method Investment, Ownership Percentage             40.00%
Equity Method Investment, Deferred Gain on Sale $ 1,400,000            
Equity Method Investments 0 $ 0   $ 0   $ 0 $ 1,000,000
Milestone China [Member] | Sale of Variable Interest Entity's Shares [Member]              
Price for Shares of Variable Interest Entity Interest Sold 1,400,000 1,400,000   1,400,000      
Proceeds from Sale of Variable Interest Entity Shares with Agreement to Repurchase 125,000            
Financing Receivable, Net 1,275,000 $ 1,275,000   $ 1,275,000      
Note Receivable, Quarterly Installment Amount $ 125,000            
Equity Method Investment, Ownership Percentage 40.00% 40.00%   40.00% 40.00%    
Option to Repurchase Variable Interest Entity Shares, Purchase Price $ 1,400,000            
Option to Repurchase Variable Entity Shares at Specified Purchase Price, Period 2 years            
Option to Repurchase, Period 10 years     10 years      
Equity Method Investment, Deferred Gain on Sale $ 1,400,000