Consolidated Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating activities:
Cash provided by operating activities	$ 21,963	$ 6,179
Investing activities:
Mining equipment	(8,250)us-gaap_PaymentsToAcquireMiningAssets	(2,936)us-gaap_PaymentsToAcquireMiningAssets
Other	190
Cash used in investing activities	(8,060)	(2,936)
Financing activities:
Dividends	(1,200)us-gaap_PaymentsOfDividendsCommonStock	(1,194)us-gaap_PaymentsOfDividendsCommonStock
Payments on bank debt	(14,375)us-gaap_RepaymentsOfBankDebt
Cash used in financing activities	(15,575)	(1,194)
Increase (decrease) in cash and cash equivalents	(1,672)	2,049
Cash and cash equivalents, beginning of period	13,469	16,228
Cash and cash equivalents, end of period	$ 11,797	$ 18,277

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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