Share-based Compensation Plans - Restricted Stock Units (Details) - Restricted stock units $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Settle in Stock, Shares
Granted (in shares)	38,104
Forfeited (in shares)	(1,388)
Balance at the end of the period (in shares)	36,716
Expected to vest at the end of the period (in shares)	25,719
Settle in Stock, Average Grant Date Fair Value
Granted (in dollars per share) | $ / shares	$ 7.56
Forfeited (in dollars per share) | $ / shares	7.56
Balance at the end of the period (in dollars per share) | $ / shares	7.56
Expected to vest at the end of the period (in dollars per share) | $ / shares	$ 7.56
Settle in Cash, Shares
Granted (in shares)	81,696
Forfeited (in shares)	(3,205)
Balance at the end of the period (in shares)	78,491
Expected to vest at the end of the period (in shares)	64,966
Settle in Cash, Average Grant Date Fair Value
Balance at the end of the period (in dollars per share) | $ / shares	$ 12.33
Expected to vest at the end of the period (in dollars per share) | $ / shares	$ 12.33
Accrued liability of cash settled restricted stock units | $	$ 0.2
Minimum
Summary of the expenses the Company has recognized related to share-based compensation
Vesting percentage of units settled in shares	0.00%
Maximum
Summary of the expenses the Company has recognized related to share-based compensation
Vesting percentage of units settled in shares	150.00%