Consolidated Balance Sheets - USD ($)	Jul. 31, 2026	Jul. 31, 2025
Current assets:
Cash and cash equivalents	$ 34,978,000	$ 35,371,000
Accounts receivable, net	67,803,000	87,176,000
Inventories, net	10,510,000	6,936,000
Prepaid expenses and other current assets	12,627,000	13,775,000
Current assets of discontinued operations held for sale (See Note 2)	117,341,000	127,987,000
Total current assets	243,259,000	271,245,000
Property, plant and equipment, net	30,976,000	27,960,000
Operating lease right-of-use assets, net	9,914,000	9,527,000
Goodwill	176,126,000	176,126,000
Intangibles with finite lives, net	120,664,000	135,427,000
Deferred financing costs, net	1,454,000	1,908,000
Other assets, net	9,324,000	10,457,000
Non-current assets of discontinued operations held for sale (See Note 2)	104,045,000	109,246,000
Total assets	695,762,000	741,896,000
Current liabilities:
Accounts payable	20,751,000	14,660,000
Accrued expenses and other current liabilities	47,362,000	41,076,000
Operating lease liabilities, current	3,210,000	3,426,000
Contract liabilities	43,758,000	41,955,000
Interest payable	283,000	15,000
Current liabilities of discontinued operations held for sale (See Note 2)	54,190,000	53,067,000
Total current liabilities	290,571,000	158,249,000
Operating lease liabilities, non-current	9,423,000	8,907,000
Income taxes payable, non-current	1,444,000	1,611,000
Long-term contract liabilities	16,429,000	21,005,000
Warrant and derivative liabilities	4,481,000	17,849,000
Other liabilities	3,509,000	3,450,000
Non-current liabilities of discontinued operations held for sale (See Note 2)	24,698,000	26,856,000
Total liabilities	434,875,000	447,929,000
Commitments and contingencies (See Note 14)
Convertible preferred stock, par value $0.10 per share; authorized and issued 178,181 shares at July 31, 2026 (redemption value of $223,156,000, which includes accrued dividends of $1,661,000) and authorized and issued 178,181 shares at July 31, 2025 (redemption value of $204,153,000, which includes accrued dividends of $1,520,000)	221,983,000	189,545,000
Stockholders’ equity:
Preferred stock, par value $0.10 per share; authorized and unissued 1,821,819 shares at July 31, 2026 and 2025, respectively	0	0
Common stock, par value $0.10 per share; authorized 100,000,000 shares; issued 45,025,294 shares and 44,443,626 shares at July 31, 2026 and 2025, respectively	4,502,000	4,444,000
Additional paid-in capital	519,315,000	548,722,000
Accumulated deficit	(43,064,000)	(6,895,000)
Stockholders' equity before treasury stock	480,753,000	546,271,000
Treasury stock, at cost (15,033,317 shares at July 31, 2026 and 2025)	(441,849,000)	(441,849,000)
Total stockholders’ equity	38,904,000	104,422,000
Total liabilities, convertible preferred stock and stockholders’ equity	695,762,000	741,896,000
Credit Facility
Current liabilities:
Current portion of credit facility, net	76,609,000	4,050,000
Non-current portion of credit facility, net	21,400,000	114,414,000
Subordinated Credit Facility
Current liabilities:
Current portion of credit facility, net	44,408,000	0
Non-current portion of credit facility, net	$ 62,920,000	$ 95,588,000

Warrant And Derivative Liabilities

No definition available.

Name:	cmtl_WarrantAndDerivativeLiabilities
Namespace Prefix:	cmtl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).