Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Restricted Stock Award Activity (Details)

v3.7.0.1
Stock-Based Compensation - Restricted Stock Award Activity (Details) - Restricted shares of common stock
3 Months Ended
Mar. 31, 2017
$ / shares
shares
Number of Shares (in shares):  
Non-vested, beginning balance (in shares) | shares 80,000
Vested (in shares) | shares (10,000)
Cancelled (in shares) | shares (2,000)
Non-vested, ending balance (in shares) | shares 68,000
Weighted-Average Grant Date Fair Value (in dollars per share):  
Non-vested, beginning balance (usd per share) | $ / shares $ 6.30
Vested (usd per share) | $ / shares 8.38
Cancelled (usd per share) | $ / shares 11.36
Non-vested, ending balance (usd per share) | $ / shares $ 5.85