XML 151 R136.htm IDEA: XBRL DOCUMENT
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Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 07, 2016 | Aug. 02, 2016 | Nov. 09, 2015 | Nov. 05, 2015 | Nov. 05, 2015 | Nov. 04, 2015 | Jan. 05, 2015 | Sep. 22, 2014 | Aug. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Nov. 20, 2014 | May 29, 2014
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional shares of common stock exercised to purchase (in shares) |  |  |  |  |  |  |  |  |  | 2,000 | 0 |  |  |
Net proceeds from offering |  |  | $ 54,700 |  |  |  |  |  |  | $ 0 | $ 53,975 | $ 6,000 |  |
Total number of shares sold (in shares) |  |  |  |  |  |  |  |  |  | 42,070,675 | 35,281,375 |  |  |
Conversion of preferred stock to common stock |  |  |  |  |  |  |  |  |  | $ 21,372 | $ 1,839 |  |  |
Schuff |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total number of shares sold (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000
Preferred stock cumulative cash dividend rate (as a percent) |  |  |  |  |  |  | 7.50% |  |  |  |  |  |  |
Preferred stock dividend rate (as a percent) |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |
Volume weighted average price threshold percentage |  |  |  |  |  |  | 150.00% |  |  |  |  |  |  |
Preferred stock redemption price per share on accrued and unpaid dividends, percentage |  |  |  |  |  |  |  |  | 150.00% |  |  |  |  |
Preferred stock force conversion, trading days to calculate volume weighted average price |  |  |  |  |  |  |  |  | 30 days |  |  |  |  |
Convertible preferred stock volume weighted average price percentage |  |  |  |  |  |  |  |  | 150.00% |  |  |  |  |
Preferred stock trading days to calculate volume weighted average price |  |  |  |  |  |  |  |  | 20 days |  |  |  |  |
Schuff | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend rate (as a percent) |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |
Schuff | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock dividend rate (as a percent) |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |
Senior Secured Notes Collateralized by Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional notes issued (as a percent) |  |  |  |  |  |  |  |  | 11.00% |  |  |  | 11.00% |
Common stocks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred stock to common stock |  |  |  |  |  |  |  |  |  | $ 700 |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of the purchase price |  |  |  |  |  |  |  |  | $ 5,000 |  |  |  |  |
Number of shares of preferred stock converted (in shares) |  |  |  |  |  |  |  |  |  | 14,364 |  |  |  |
Number of shares of common stock from conversion (in shares) |  |  |  |  |  |  |  |  |  | 4,196,388 |  |  |  |
Series A Preferred Stock | Schuff |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,000
Series A-1 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of preferred stock converted (in shares) |  |  |  |  |  |  |  |  |  | 9,000 | 1,000 |  |  |
Number of shares of common stock from conversion (in shares) |  |  |  |  |  |  |  |  |  | 2,119,764 |  |  |  |
Series A-1 Convertible Preferred Stock | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intrinsic value (in usd per share) |  |  |  |  |  |  | $ 4.25 |  |  |  |  |  |  |
Series A-1 Convertible Preferred Stock | Schuff |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares issued (in shares) |  |  |  |  |  |  |  | 11,000 |  |  |  |  |  |
Preferred stock conversion price (in usd per share) |  |  |  |  |  |  |  | $ 4.25 |  |  |  |  |  |
Series A-2 Preferred Stock | Schuff |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, shares issued (in shares) |  |  |  |  |  |  | 14,000 |  |  |  |  |  |  |
Preferred stock conversion price (in usd per share) |  |  |  |  |  |  | $ 7.80 |  |  |  |  |  |  |
Common stocks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  |  |  |  | 8,452,500 | 8,452,500 |  |  |  |  | 8,459,000 | 1,500,000 |  |
Additional shares of common stock exercised to purchase (in shares) |  |  |  | 1,102,500 |  |  |  |  |  |  |  |  |  |
Conversion of preferred stock to common stock |  |  |  |  |  |  |  |  |  | $ 7 |  |  |  |
Common stocks | Series A-1 Convertible Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock from conversion (in shares) |  |  |  |  |  |  |  |  |  |  | 235,526 |  |  |
Common stocks | November 2015 Offering |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  |  |  |  |  | 7,350,000 |  |  |  |  |  |  |  |
Corrib Master Fund, Ltd. | Common stocks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  | 15,318 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock from conversion (in shares) |  | 238,492 |  |  |  |  |  |  |  |  |  |  |  |
Corrib Master Fund, Ltd. | Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of preferred stock converted (in shares) |  | 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Luxor Capital Partners, LP | Common stocks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  | 136,149 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock from conversion (in shares) |  | 2,119,765 |  |  |  |  |  |  |  |  |  |  |  |
Luxor Capital Partners, LP | Series A-1 Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance and sale of common stock (in shares) |  | 9,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of preferred stock converted (in shares) |  | 9,000 |  |  |  |  |  |  |  |  |  |  |  |
Corrib Master Fund, Ltd. and Luxor Capital Partners, LP |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of accrued value |  |  |  |  |  |  |  |  |  | 1.875% |  |  |  |
Hudson Bay Absolute Return Credit Opportunities Master Fund, LTD. | Common stocks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of common stock from conversion (in shares) |  |  |  |  |  |  |  |  |  | 770,926 |  |  |  |
Additional share consideration valued at |  |  |  |  |  |  |  |  |  | $ 4,400 |  |  |  |
Number of shares converted (in shares) | 3,751,838 |  |  |  |  |  |  |  |  |  |  |  |  |
Hudson Bay Absolute Return Credit Opportunities Master Fund, LTD. | Series A Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares of preferred stock converted (in shares) | 12,500 |  |  |  |  |  |  |  |  | 12,499 |  |  |  |
Number of shares of common stock from conversion (in shares) |  |  |  |  |  |  |  |  |  | 2,980,912 |  |  |  |
Recurring | Level 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional share consideration valued at |  |  |  |  |  |  |  |  |  | $ 1,500 |  |  |  |

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