Annual report pursuant to Section 13 and 15(d)

Quarterly Results (Unaudited) (Details)

v3.21.2
Quarterly Results (Unaudited) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Apr. 30, 2021
Jan. 31, 2021
Oct. 31, 2020
Jul. 31, 2020
Apr. 30, 2020
Jan. 31, 2020
Oct. 31, 2019
Jul. 31, 2019
Apr. 30, 2021
Apr. 30, 2020
Quarterly Financial Information Disclosure [Abstract]                    
Revenues $ 19,051,076 $ 16,624,837 $ 16,971,045 $ 15,165,562 $ 14,079,193 $ 12,537,940 $ 12,085,965 $ 10,357,982 $ 67,812,520 $ 49,061,080
Cost of revenue (exclusive of depreciation and amortization) 8,721,479 7,559,951 7,324,780 5,847,523 5,431,181 5,163,007 4,188,056 4,353,058 29,453,733 19,135,302
Operating loss (2,295,735) (2,784,825) (2,797,247) (366,341) (339,790) (1,728,048) (331,775) (1,638,800) (8,244,148) (4,038,413)
Loss before income taxes (2,332,432) (2,804,806) (4,333,995) (945,096) (673,501) (2,265,889) (628,168) (2,039,687) (10,416,329) (5,607,245)
Net loss $ (2,319,986) $ (2,815,266) $ (4,370,525) $ (943,196) $ (664,563) $ (2,281,052) $ (638,168) $ (2,075,282) $ (10,448,973) $ (5,659,065)
Net loss per share - basic and diluted (in dollars per share) $ (0.09) $ (0.11) $ (0.19) $ (0.04) $ (0.03) $ (0.12) $ (0.03) $ (0.11) $ (0.44) $ (0.29)