Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 109,050	$ 104,737
Receivables — net of allowance of $2,365 and $2,336, respectively	39,589	32,766
Deferred income taxes-current		836
Prepaid expenses	9,376	2,198
Other current assets	219	1,320
Total current assets	158,234	141,857
Property and equipment—net	37,336	23,678
Restricted cash	345	345
Deferred income taxes-noncurrent	1,059	3,284
Other assets	1,075	1,007
Total assets	198,049	170,171
Current liabilities:
Accounts payable	424	1,607
Accrued liabilities:
Taxes payable	624	1,263
Network and facilities	10,984	7,266
Rent	1,969	2,015
Payroll and related items	2,918	3,079
Other	1,297	897
Total current liabilities	$ 18,216	$ 16,127
Commitments and contingencies (Note 9)
Shareholders’ equity:
Preferred stock—par value of $.001; 50,000 authorized shares; no shares issued and outstanding at December 31, 2015 and December 31, 2014
Common stock—par value of $.001; 150,000 authorized shares; 33,891 shares and 33,458 shares issued and outstanding at December 31, 2015 and December 31, 2014, respectively	$ 34	$ 33
Less treasury stock, at cost; 3,351 shares at December 31, 2015 and December 31, 2014	(51,668)	(51,668)
Additional paid-in capital	225,474	217,628
Retained earnings (accumulated deficit)	5,993	(11,949)
Total shareholders’ equity	179,833	154,044
Total liabilities and shareholders' equity	$ 198,049	$ 170,171