Note 10 - Related Party Transactions and Balances

3 Months Ended

Mar. 31, 2025

Notes to Financial Statements

Related Party Transactions Disclosure [Text Block]

Note 10.    Related Party Transactions and Balances

The Company’s Gamma Knife business is operated through its 81% indirect interest in its GKF subsidiary. The remaining 19% of GKF is owned by a wholly owned U.S. subsidiary of Elekta, which is the manufacturer of the Gamma Knife. Since the Company purchases its Gamma Knife units from Elekta, there are significant related party transactions with Elekta, such as equipment purchases, commitments to purchase and service equipment, and costs to maintain the equipment. 

The following table summarizes related party activity for the three-month periods ended March 31, 2025 and 2024:

	Three Months Ended March 31,
	2025		2024
Equipment purchases and de-install costs	$	1,307,000	$	2,416,000
Costs incurred to maintain equipment		251,000		170,000
Total related party transactions	$	1,558,000	$	2,586,000

The Company also had commitments to purchase and install three Esprit units, two LINACs, and service the related equipment of $14,869,000 as of   March 31, 2025.  

Related party liabilities on the condensed consolidated balance sheets consist of the following as of  March 31, 2025 and December 31, 2024

	March 31,		December 31,
	2025		2024
Accounts payable, asset retirement obligation and other accrued liabilities	$	3,315,000	$	2,270,000