Condensed Consolidated Balance Sheets (Unaudited) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 6,160 $ 11,087
Restricted cash 1,697 1,047
Marketable securities 6,268 10,000
Prepaid expenses and other current assets 514 827
Current assets of discontinued operations 4,151 3,511
Total current assets 18,790 26,472
Wireless spectrum licenses, net 431,391 435,522
Property and equipment, net 907 1,313
Other assets 77 362
Total assets 451,165 463,669
Current liabilities:    
Accounts payable 467 5
Accrued expenses 1,447 2,328
Current portion of long-term obligations 1,104,212 142,019
Other current liabilities 10 10
Current liabilities of discontinued operations 709 172
Total current liabilities 1,106,845 144,534
Deferred income tax liabilities 83,735 83,334
Long-term obligations, net of current portion 15,157 896,568
Commitments and contingencies      
Stockholders' deficit:    
Preferred stock, $0.001 par value; 25,000 shares authorized; 355 shares designated as Series A Senior Convertible Preferred Stock; no other shares issued or outstanding      
Common stock, $0.007 par value; 57,143 shares authorized; 24,938 shares issued and outstanding at June 30, 2012 and December 31, 2011 175 175
Additional paid-in-capital 888,749 888,505
Accumulated other comprehensive income 4,035 21,805
Accumulated deficit (1,647,531) (1,571,252)
Total stockholders' deficit (754,572) (660,767)
Total liabilities and stockholders' deficit $ 451,165 $ 463,669