| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (http://www.arganinc.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0000100591 (http://www.sec.gov/CIK) | 
| CONSOLIDATED STATEMENTS OF CASH FLOWS | Period [Axis] | ||
|---|---|---|---|
2015-02-01 - 2016-01-31  | 2014-02-01 - 2015-01-31  | 2013-02-01 - 2014-01-31  | |
CONSOLIDATED STATEMENTS OF CASH FLOWS  | |||
CASH FLOWS FROM OPERATING ACTIVITIES  | |||
Net income  | 50,204,000    | 43,455,000    | 43,344,000    | 
Adjustments to reconcile net income to net cash (used in) provided by operating activities  | |||
Deferred income tax expense  | |||
Stock option compensation expense  | |||
Depreciation  | |||
Amortization of purchased intangible assets  | |||
Gains on the deconsolidation of variable interest entities  | (349,000)   | (2,444,000)   | |
Other  | |||
Changes in operating assets and liabilities  | |||
Accounts receivable  | (  | (  | |
Costs and estimated earnings in excess of billings  | |||
Prepaid expenses and other assets  | (  | ||
Accounts payable and accrued expenses  | (  | (  | |
Billings in excess of costs and estimated earnings  | (  | ||
Other Comprehensive loss  | (  | ||
Net cash (used in) provided by operating activities  | (  | ||
CASH FLOWS FROM INVESTING ACTIVITIES  | |||
Purchases of short-term investments  | (  | ||
Maturities of short-term investments  | |||
Purchase of subsidiaries, net of cash acquired (Note 4)  | (  | ||
Purchases of property and equipment  | (  | (  | (  | 
Loans to energy project developers  | (  | (  | (  | 
Payments received on loans made to variable interest entities  | |||
Net cash (used in) provided by investing activities  | (  | (  | |
CASH FLOWS FROM FINANCING ACTIVITIES  | |||
Cash dividends  | (  | (  | (  | 
Cash distributions to joint venture partner  | (  | ||
Proceeds from the exercise of stock options  | |||
Excess income tax benefit on exercised stock options  | |||
Excess income tax expense on exercised stock options  | (  | ||
Deconsolidation of the cash of variable interest entities  | (  | (  | |
Net cash used in financing activities  | (  | (  | (  | 
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS  | (  | ||
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR  | 333,691,000    | ||
CASH AND CASH EQUIVALENTS, END OF YEAR  | 160,909,000    | 333,691,000    | 272,209,000    | 
SUPPLEMENTAL CASH FLOW INFORMATION:  | |||
Cash paid for income taxes  | |||
Common stock issued in connection with the acquisition of APC (noncash transaction, see Note 4)  | |||