CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Income Statement [Abstract]
Revenues	$ 31,466	$ 19,384	$ 60,121	$ 39,591
Operating costs and expenses:
Cost of revenues	15,645	13,575	32,403	28,096
Research and development	806	1,065	1,552	2,119
Selling, general and administrative	11,013	10,693	21,027	21,832
Legal and related expense	2,292	2,060	2,932	3,756
Total operating costs and expenses	29,756	27,393	57,914	55,803
Operating income (loss)	1,710	(8,009)	2,207	(16,212)
Other income (expense):
Interest, net	(49)	171	(100)	408
Other	16	72	33	199
Foreign exchange gain	625	79	461	270
Total other income (expense)	592	322	394	877
Income (loss) before income taxes	2,302	(7,687)	2,601	(15,335)
Income taxes
Net income (loss)	$ 2,302	$ (7,687)	$ 2,601	$ (15,335)
Net income (loss) per common share:
Basic (in Dollars per share)	$ 0.05	$ (0.16)	$ 0.05	$ (0.32)
Diluted (in Dollars per share)	$ 0.05	$ (0.16)	$ 0.05	$ (0.32)
Weighted average common shares outstanding:
Basic (in Shares)	48,006	47,557	47,951	47,557
Diluted (in Shares)	48,053	47,557	47,973	47,557