Condensed Consolidated Balance Sheets - USD ($)	Mar. 30, 2024	Dec. 30, 2023
Current assets:
Cash and cash equivalents	$ 14,118,762	$ 5,710,685
Restricted cash	750,000	500,000
Marketable debt securities, at fair value	6,941,080	11,692,000
Accounts receivable, net of allowance of $987,000 in 2024 and $1,025,000 in 2023	6,801,658	9,706,036
Contract assets and unbilled receivables	5,687,165	3,409,809
Inventory	6,120,355	7,601,806
Prepaid taxes	86,578	85,572
Prepaid expenses and other current assets	1,483,049	1,124,635
Total current assets	41,988,647	39,830,543
Property, plant and equipment, net	2,212,691	2,163,417
Operating lease right-of-use assets	2,328,152	2,504,909
Other assets	124,925	124,925
Equity investments	4,611,510	4,688,522
Total assets	51,265,925	49,312,316
Current liabilities:
Accounts payable	8,993,894	7,076,759
Accrued payroll and expenses	1,826,176	1,701,506
Accrued warranty	2,160,000	2,160,000
Contract liabilities and billings in excess of revenues earned	886,432	916,826
Operating lease liabilities	628,019	651,503
Accrued post-retirement benefits	602,500	790,000
Other accrued liabilities	1,440,364	1,702,681
Customer deposits	701,777	408,156
Deferred tax liabilities	470,884	470,884
Accrued litigation damages	24,800,000
Total current liabilities	42,510,046	15,878,315
Noncurrent contract liabilities and asset retirement obligations	361,779	278,112
Operating lease liabilities, net of current portion	1,680,063	1,832,982
Accrued post-retirement benefits, net of current portion	279,996	319,996
Other long-term obligations, net of current portion	1,494,016	1,494,016
Total liabilities	46,325,900	19,803,421
Commitments and contingencies
Stockholders’ equity:
Preferred stock, par value $.01 per share: authorized, 3,000 shares; none issued
Common stock, par value $.01 per share: authorized, 150,000,000 shares; issued 118,498,635 shares in 2024 and 114,253,818 shares in 2023; outstanding 115,351,480 in 2024 and 112,251,416 in 2023, respectively	1,154,220	1,123,220
Additional paid-in capital	393,358,051	385,411,542
Treasury stock (70,635 shares in 2024 and 2023, at cost)	(103,127)	(103,127)
Accumulated other comprehensive income	1,234,130	1,232,294
Accumulated deficit	(390,703,249)	(358,155,034)
Total stockholders’ equity	4,940,025	29,508,895
Total liabilities and stockholders’ equity	$ 51,265,925	$ 49,312,316

Accrued post retirement benefits net of current portion.

No definition available.

Name:	KOPN_AccruedPostretirementBenefitsNetOfCurrentPortion
Namespace Prefix:	KOPN_
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).