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Redeemable Convertible Preferred Stock	3 Months Ended
Redeemable Convertible Preferred Stock	Mar. 31, 2016
Equity [Abstract]
Redeemable Convertible Preferred Stock	9. Redeemable Convertible Preferred Stock In conjunction with the issuance of the Redeemable Convertible Preferred Stock, Series A in May 2012, warrants were issued for common stock. The initial value allocated to the warrants was recognized as a discount on the Series A Convertible Preferred Stock, with a corresponding charge to additional paid-in capital. The discount related to the warrants is accreted to retained earnings through the scheduled redemption date of the redeemable Series A Convertible Preferred Stock. Discount accretion for the three months ended March 31, 2016 and 2015 totaled $0.01 million and $0.01 million. The Series A Preferred Stock accrues cumulative dividends at a rate of 6% per annum payable quarterly in cash or with our Common Stock, at the option of the Company, based on the then current liquidation value of the Preferred Stock which is currently $5.00 per share. Quarterly dividends not paid in cash or Common Stock accumulate without interest and must be fully paid before any dividend or other distribution can be paid on or declared and set apart for the Common Stock or conversion of the Preferred Stock to Common Stock.