Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.7.0.1
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Apr. 30, 2017
Apr. 30, 2016
Allowance $ 50 $ 100
Common stock, par value $ .001 $ 0.001
Common stock, shares authorized 54,000,000 54,000,000
Common stock, shares issued 1,204,667 412,074
Common stock, shares outstanding 1,204,667 412,074
Series A Preferred Stock [Member]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares designated 1,300,000 1,300,000
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Series B Preferred Stock [Member]    
Preferred stock, par value $ 12.20 $ 12.20
Preferred stock, shares designated 400,000 400,000
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 331,559
Preferred stock, shares outstanding 331,559
Series D Preferred Stock [Member]    
Preferred stock, par value $ 136.00 $ 136.00
Preferred stock, shares designated 7,402 7,402
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding