| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - Condensed Consolidated Statements of Cash Flows (http://www.immunomedics.com/role/StatementCondensedConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0000722830 (http://www.sec.gov/CIK) | 
| Condensed Consolidated Statements of Cash Flows [Abstract] | Period [Axis] | ||
|---|---|---|---|
2015-07-01 - 2016-06-30  | 2014-07-01 - 2015-06-30  | 2013-07-01 - 2014-06-30  | |
Condensed Consolidated Statements of Cash Flows [Abstract]  | |||
Cash flows from operating activities:  | |||
Net loss  | (59,135,716)   | (48,123,971)   | (35,531,178)   | 
Adjustments to reconcile net loss to net cash used in operating activities:  | |||
Depreciation and amortization  | |||
Amortization of deferred revenue  | (  | (  | (  | 
Amortization of bond premiums  | |||
Amortization of debt issuance costs  | |||
Amortization of deferred rent  | |||
Gain on sale of marketable securities  | (  | (  | (  | 
Increase (decrease) in allowance for doubtful accounts  | (  | ||
Non-cash expense related to stock compensation  | |||
Non-cash decrease in value of life insurance policy  | |||
Changes in operating assets and liabilities:  | |||
Accounts receivable  | (  | (  | |
Inventory  | |||
Other receivables  | (  | (  | |
Prepaid expenses  | (  | ||
Other current assets  | (  | ||
Accounts payable and accrued expenses  | |||
Deferred revenues  | |||
Net cash used in operating activities  | (  | (  | (  | 
Cash flows from investing activities:  | |||
Purchases of marketable securities  | (  | (  | (  | 
Proceeds from sales/maturities of marketable securities  | |||
Purchases of property and equipment  | (  | (  | (  | 
Proceeds from partial liquidation of life insurance policy  | |||
Net cash provided by (used in) investing activities  | (  | (  | |
Cash flows from financing activities:  | |||
Proceeds from issuance of convertible senior notes  | |||
Payment of debt issuance costs  | (  | ||
Issuance of common stock, net of fees  | |||
Exercise of stock options  | |||
Tax withholding payments for stock compensation  | (  | (  | (  | 
Net cash provided by financing activities  | |||
Effect of changes in exchange rates on cash and cash equivalents  | (  | (  | |
Net (decrease) increase in cash and cash equivalents  | (  | (  | |
Cash and cash equivalents beginning of period  | 13,452,775    | ||
Cash and cash equivalents end of period  | 13,203,625    | 13,452,775    | 6,961,494    | 
Supplemental disclosure of cash flow information:  | |||
Interest paid  | |||
Cash paid for income taxes  | |||