Annual report pursuant to Section 13 and 15(d)

7. NOTES PAYABLE (Details 1)

v3.19.1
7. NOTES PAYABLE (Details 1) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Debt Disclosure [Abstract]      
Cash and cash equivalents $ 22,754,852 $ 43,107,574  
Restricted cash included in current assets 0 1,500,000  
Restricted cash included in long-term assets 4,000,000 4,000,000  
Total cash, cash equivalents and restricted cash as shown in the consolidated statements of cash flows $ 26,754,852 $ 48,607,574 $ 9,914,867