CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash	$ 2,193	$ 3,422
Accounts receivable, net	5,551	2,767
Employee retention tax credit receivable	0	323
Inventory	468	404
Contract assets	1,162	3,080
Prepaid expenses and other current assets	334	210
Total current assets	9,708	10,206
Property, plant and equipment, net	3,355	2,791
Intangibles, net	193	64
Right-of-use operating lease assets	6,176	5,383
Right-of-use finance lease assets	75	29
Other assets	109	267
Total assets	19,616	18,740
Current liabilities:
Accounts payable and accrued expenses	2,999	3,319
Contract liabilities	715	542
Deferred revenue	28	114
Current operating lease liabilities	861	537
Current finance lease liabilities	23	12
Total current liabilities	4,626	4,524
Long term notes payable	27	0
Operating lease liability, long-term	6,125	5,600
Finance lease liability, long-term	53	12
Total liabilities	10,831	10,136
Commitments and contingencies (Note 8)
Stockholders' equity:
Common stock, 24,500,000 shares authorized at $0.001 par value, 16,106,010 issued at June 30, 2025 and December 31, 2024	16	16
Additional paid-in capital	74,355	74,206
Treasury stock, 4,017,808 shares at June 30, 2025 and December 31, 2024, at cost	(3,135)	(3,135)
Accumulated deficit	(62,451)	(62,483)
Total stockholders' equity	8,785	8,604
Total liabilities and stockholders' equity	$ 19,616	$ 18,740

No definition available.

Name:	KLNG_EmployeeRetentionTaxCreditReceivable
Namespace Prefix:	KLNG_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.