Rental revenues for the three months ended March 31, 2023 and 2022, respectively, are comprised of the following:


	Three months ended March 31,
	2023		2022
Base rents	$	5,835,000	$	6,286,000
Expense recoveries - variable lease revenue		2,261,000		1,997,000
Percentage rent - variable lease revenue		168,000		123,000
Straight-line rents		191,000		(11,000	)
Amortization of intangible lease liabilities, net		22,000		160,000
		8,477,000		8,555,000
Credit adjustments on operating lease receivables		164,000		(41,000	)
Total rental revenues	$	8,641,000	$	8,514,000

The Company reviews the collectability of charges under its tenant operating leases on a regular basis, taking into consideration changes in factors such as the tenant’s payment history, the financial condition of the tenant, business conditions in the industry in which the tenant operates and economic conditions in the area where the property is located. In the event that collectability with respect to any tenant changes, the Company recognizes an adjustment to rental income. The Company’s review of collectability of charges under its operating leases includes any accrued rental revenues related to the straight-line method of reporting rental revenue.