Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Sep. 30, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 103,991,231	$ 132,510,610
Trade receivables	127,000
Prepaid expenses	4,451,124	588,626
Other current assets	62,841	48,502
Short term investments	23,532,402	21,653,032
TOTAL CURRENT ASSETS	132,164,598	154,800,770
Property and equipment, net	4,124,441	3,872,753
Intangible assets, net	999,809	1,013,473
Investments	17,806,499	23,088,346
Other assets	7,041,414	41,414
TOTAL ASSETS	162,136,761	182,816,756
CURRENT LIABILITIES
Accounts payable	5,994,951	2,579,478
Accrued expenses	1,148,092	1,399,486
Accrued payroll and benefits	2,175,484	3,268,506
Deferred revenue	109,375	103,125
Derivative liabilities	1,790,559	4,173,943
Capital lease obligation	213,991	213,991
Notes payable		50,000
Other current liabilities	65,213	58,495
TOTAL CURRENT LIABILITIES	11,497,665	11,847,024
LONG-TERM LIABILITIES
Capital lease obligation, net of current portion	705,173	758,340
Contingent consideration obligations	3,970,931	3,970,931
Other non-current liabilities	253,321	255,206
TOTAL LONG-TERM LIABILITIES	4,929,425	4,984,477
Commitments and contingencies
Arrowhead Research Corporation stockholders' equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; 18,300 and 18,300 shares issued and outstanding as of December 31, 2014 and September 30, 2014, respectively	18	18
Common stock, $0.001 par value; 145,000,000 shares authorized; 54,715,714 and 54,656,936 shares issued and outstanding as of December 31, 2014 and September 30, 2014, respectively	147,085	147,026
Additional paid-in capital	393,464,197	391,164,558
Accumulated deficit	(247,346,441)	(224,771,159)
Total Arrowhead Research Corporation stockholders' equity	146,264,859	166,540,443
Noncontrolling interest	(555,188)	(555,188)
TOTAL STOCKHOLDERS’ EQUITY	145,709,671	165,985,255
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 162,136,761	$ 182,816,756