Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.6.0.2
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
Jan. 31, 2017
Apr. 30, 2016
Allowance $ 50,000 $ 100,000
Common stock, par value $ 0.001 $ 0.001
Common stock, authorized shares 54,000,000 54,000,000
Common stock, issued shares 4,046,960 1,648,287
Common stock, outstanding shares 4,046,960 1,648,287
Series A Preferred Shares    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, designated shares 1,300,000 1,300,000
Preferred stock, issued shares 0 0
Preferred stock, outstanding shares 0 0
Series B Preferred Stock    
Preferred stock, par value $ 12.20 $ 12.20
Preferred stock, designated shares 400,000 400,000
Preferred stock, issued shares 0 331,559
Preferred stock, outstanding shares 0 331,559
Series D Preferred Stock    
Preferred stock, par value $ 136.00 $ 136.00
Preferred stock, designated shares 7,402 7,402
Preferred stock, issued shares 3,699 0
Preferred stock, outstanding shares 3,699 0
Preferred stock, liquidation value $ 503,000