Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands |
Sep. 30, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Debt issuance costs | $ 1,818 | $ 2,753 |
| Voting Common Stock [Member] | ||
| Common stock, par value (in USD per share) | $ 0.10 | $ 0.10 |
| Common stock, shares authorized (shares) | 12,500,000 | 12,500,000 |
| Common stock, shares issued (shares) | 2,905,757 | 2,905,757 |
| Common stock, shares outstanding (shares) | 2,905,757 | 2,905,757 |
| Non-Voting Common Stock [Member] | ||
| Common stock, par value (in USD per share) | $ 0.10 | $ 0.10 |
| Common stock, shares authorized (shares) | 37,500,000 | 37,500,000 |
| Common stock, shares issued (shares) | 12,893,895 | 12,779,646 |
| Common stock, shares outstanding (shares) | 12,893,895 | 12,779,646 |