Accounts receivables, net and other receivables

12 Months Ended

Dec. 31, 2011

Accounts receivables, net and other receivables

Accounts receivables, net and other receivables

4. Accounts receivables, net and other receivables

        Accounts receivable, net of allowances for doubtful accounts and other receivables consisted of the following:

	December 31,
	2011		2010
Trade receivables, net of allowances	$	7,382	$	7,830
Unbilled advertising receivables		—		116
Current receivables, net	$	7,382	$	7,946
Unbilled platform service arrangements, current	$	68	$	49
Unbilled access fees	$	1,985	$	2,190
Unbilled platform service arrangements		166		30
Non-current other receivables	$	2,151	$	2,220

        Unbilled advertising receivables are included in accounts receivable, net in the accompanying consolidated balance sheets. Unbilled access fees receivables are included in non-current other assets and unbilled platform service arrangements are included in current and non-current other assets in the accompanying consolidated balance sheets. Access fees are recorded under long-term contracts with our wholesale partners that are telecom operators under long-term contracts for access to our DAS at our managed and operated locations. These fees escalate on an annual basis from which we receive fixed contractual payments and recognize revenue ratably over the term of the contracts.

        Included in accounts receivables, net for the periods indicated was the allowance for doubtful accounts which consisted of the following:

	Allowance for Doubtful Accounts
Balance, December 31, 2008	$	260
Additions charged to operations		357
Balance, December 31, 2009		617
Additions charged to operations		44
Deductions from reserves, net		(554	)
Balance, December 31, 2010		107
Additions charged to operations		115
Deductions from reserves, net		(45	)
Balance, December 31, 2011	$	177