| Component: (Network and Table) | |
|---|---|
| Network | 00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (http://axt.com/role/StatementConsolidatedStatementsOfCashFlowsUnaudited)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001051627 (http://www.sec.gov/CIK) | 
| CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)  | |||
Cash flows from operating activities:  | |||
Net income (loss)  | 4,966,000    | (2,533,000)   | (697,000)   | 
Adjustments to reconcile net income (loss) to net cash provided by operating activities:  | |||
Depreciation and amortization  | |||
Amortization of marketable securities premium  | |||
Stock-based compensation  | |||
Provision for doubtful accounts  | |||
Realized gain on sale of investments  | (  | (  | (  | 
Loss (gain) on disposal of equipment  | (  | ||
Loss (gain) from equity method investments, net  | (  | (  | |
Changes in operating assets and liabilities:  | |||
Accounts receivable  | (  | (  | |
Inventories  | (  | (  | |
Prepaid expenses and other current assets  | (  | ||
Other assets  | |||
Accounts payable  | (  | (  | |
Accrued liabilities  | (  | ||
Other long-term liabilities, including royalties  | (  | (  | (  | 
Net cash provided by operating activities  | |||
Cash flows from investing activities:  | |||
Purchases of equipment  | (  | (  | (  | 
Proceeds from sale of equipment  | |||
Purchases of available for sale securities  | (  | (  | (  | 
Proceeds from sales and maturities of available-for-sale securities  | |||
Investments in non-marketable equity investments  | (  | ||
Dividends received from equity method investments  | |||
Net cash provided by (used in) investing activities  | (  | (  | |
Cash flows from financing activities:  | |||
Proceeds from common stock options exercised  | |||
Repurchases of the Company's common stock, including commission  | (  | ||
Dividends paid by joint ventures to their minority share holders  | (  | (  | (  | 
Net cash provided by (used in) financing activities  | (  | (  | |
Effect of exchange rate changes on cash and cash equivalents  | (  | (  | (  | 
Net increase (decrease) in cash and cash equivalents  | (  | ||
Cash and cash equivalents at the beginning of the period  | 24,875,000    | ||
Cash and cash equivalents at the end of the period  | 36,152,000    | 24,875,000    | 28,814,000    | 
Supplemental disclosures:  | |||
Income taxes paid, net of refunds  | |||