Note 4 - Revenue Recognition - Revenues by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2026	Apr. 30, 2025
Revenues	$ 315,713	$ 301,985	$ 958,981	$ 914,901
National Retail Solutions [Member]
Revenues	38,000	31,145	114,421	94,483
Fintech [Member]
Revenues	45,004	38,619	128,918	112,527
Net2phone 2.0 [Member]
Revenues	24,368
Net2phone [Member]
Revenues	24,368	21,990	71,717	65,099
Traditional Communications [Member]
Revenues	208,341	210,231	643,925	642,792
UNITED STATES
Revenues	251,270	238,758	762,377	722,555
UNITED STATES \| National Retail Solutions [Member]
Revenues	37,951	31,145	114,271	94,483
UNITED STATES \| Fintech [Member]
Revenues	43,230	37,278	124,098	108,786
UNITED STATES \| Net2phone 2.0 [Member]
Revenues	13,851
UNITED STATES \| Net2phone [Member]
Revenues		12,758	41,136	37,534
UNITED STATES \| Traditional Communications [Member]
Revenues	156,238	157,577	482,872	481,752
UNITED KINGDOM
Revenues	38,369	45,858	120,211	139,604
UNITED KINGDOM \| National Retail Solutions [Member]
Revenues	0	0	0	0
UNITED KINGDOM \| Fintech [Member]
Revenues	0	0	0	0
UNITED KINGDOM \| Net2phone 2.0 [Member]
Revenues	0
UNITED KINGDOM \| Net2phone [Member]
Revenues		0	0	0
UNITED KINGDOM \| Traditional Communications [Member]
Revenues	38,369	45,858	120,211	139,604
Other [Member]
Revenues	26,074	17,369	76,393	52,742
Other [Member] \| National Retail Solutions [Member]
Revenues	49	0	150	0
Other [Member] \| Fintech [Member]
Revenues	1,774	1,341	4,820	3,741
Other [Member] \| Net2phone 2.0 [Member]
Revenues	10,517
Other [Member] \| Net2phone [Member]
Revenues		9,232	30,581	27,565
Other [Member] \| Traditional Communications [Member]
Revenues	13,734	6,796	40,842	21,436
Non-US [Member]
Revenues	64,443	63,227	196,604	192,346
Non-US [Member] \| National Retail Solutions [Member]
Revenues	49	0	150	0
Non-US [Member] \| Fintech [Member]
Revenues	1,774	1,341	4,820	3,741
Non-US [Member] \| Net2phone 2.0 [Member]
Revenues	10,517
Non-US [Member] \| Net2phone [Member]
Revenues		9,232	30,581	27,565
Non-US [Member] \| Traditional Communications [Member]
Revenues	$ 52,103	$ 52,654	$ 161,053	$ 161,040