Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.19.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Allowance for doubtful accounts $ 1,681 $ 3,421
Series B convertible redeemable preferred stock, par value $ 0.01 $ 0.01
Series B convertible redeemable preferred stock, shares authorized 902,670 902,670
Series B convertible redeemable preferred stock, shares issued 902,670 902,670
Series B convertible redeemable preferred stock, shares outstanding 902,670 902,670
Liquidation preference $ 9,658,278  
Preferred stock, shares authorized 11,000,000 11,000,000
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 80,000,000 80,000,000
Common stock, shares issued 46,738,532 43,067,546
Common stock, shares outstanding 46,687,999 43,063,135
Treasury stock, shares 50,533 4,411
Series A Convertible Preferred Stock [Member]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 10,097,330 10,097,330
Preferred stock, shares issued
Related Party [Member]    
Allowance for doubtful accounts $ 514,087 $ 514,087