Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 29,910	$ 71,639
Accounts receivable	1,177	235
Other receivable	17,674
Inventory	4,542	5,074
Prepaid expenses and other current assets	2,635	3,567
Total current assets	55,938	80,515
Property and equipment, net	4,841	5,478
Other assets	7,815	7,730
Total assets	68,594	93,723
Current liabilities:
Accounts payable	6,297	5,051
Accrued expenses	15,350	9,469
Warrant liability		991
Current portion of deferred revenue	903	1,010
Current portion of long-term debt	5,865	3,155
Other current liabilities	396	393
Total current liabilities	28,811	20,069
Deferred revenue, less current portion	2,011	1,626
Long-term debt, less current portion	7,846	10,152
Other liabilities	5,989	5,657
Total liabilities	44,657	37,504
Commitments and contingencies
Common stock purchase warrants	7,890	13,461
Shareholders' equity:
Common stock, no par value: Authorized shares - 215,000,000 Issued and outstanding shares - 150,135,446 and 145,508,767 at September 30, 2014 and December 31, 2013, respectively	1,957,696	1,933,305
Accumulated other comprehensive loss	(7,216)	(8,429)
Accumulated deficit	(1,931,501)	(1,879,703)
Total CTI shareholders' equity	18,979	45,173
Noncontrolling interest	(2,932)	(2,415)
Total shareholders' equity	16,047	42,758
Total liabilities and shareholders' equity	$ 68,594	$ 93,723