Quarterly report pursuant to Section 13 or 15(d)

Significant accounting policies (Narrative) (Details)

v3.5.0.2
Significant accounting policies (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Cash, cash equivalents and short-term investments:          
Cash and cash equivalent investment portfolio, percentage 20.00%   20.00%    
Management fees     $ 11,000 $ 16,000  
Accounts receivable, net    
Sales $ 24,517 $ 35,805  
Income (loss) per share:          
Basic and diluted weighted average number of shares outstanding pre-stock split basis     30,990,029    
Basic and diluted weighted average number of shares outstanding post-split basis     3,876,961    
Shares not included in the computation of EPS 966,000 776,000 966,000 776,000